Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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| prolonged mosquitocidal activity of siparuna guianensis essential oil encapsulated in chitosan nanoparticles. | the use of synthetic insecticides is one of the most common strategies for controlling disease vectors such as mosquitos. however, their overuse can result in serious risks to human health, to the environment, as well as to the selection of insecticidal resistant insect strains. the development of efficient and eco-friendly insect control is urgent, and essential oils have been presented as potential alternatives to synthetic insecticides. moreover, nanoencapsulation techniques can enhance their ... | 2019 | 31398198 |
| forecasting dengue fever in brazil: an assessment of climate conditions. | local climate conditions play a major role in the biology of the aedes aegypti mosquito, the main vector responsible for transmitting dengue, zika, chikungunya and yellow fever in urban centers. for this reason, a detailed assessment of periods in which changes in climate conditions affect the number of human cases may improve the timing of vector-control efforts. in this work, we develop new machine-learning algorithms to analyze climate time series and their connection to the occurrence of den ... | 2019 | 31393908 |
| efficacy of spinosad granules and lambda-cyhalothrin contrasts with reduced performance of temephos for control of aedes spp. in vehicle tires in veracruz, mexico. | the present study examined the efficacy of λ-cyhalothrin, pyriproxyfen and granular formulations of spinosad and temephos for the control of mosquito larvae present in experimental tires in veracruz state, mexico in the period 2015-2016. both λ-cyhalothrin and spinosad granules provided control of larvae and pupae of aedesaegypti, ae. albopictus and culex spp. in used tires in veracruz state, mexico, over a 9-12 week period, although numbers of culex were low. the numbers of aedes larvae + pupae ... | 2019 | 31390780 |
| the social face of aedes control: women take the floor in a suburban district of fortaleza, brazil. | aedes aegypti is currently a critical disease agent and is responsible for viruses such as zika, chikungunya and dengue's four serotypes. this mosquito's relevance to the current social body has come to the fore and triggered urgent ecohealth investigations since this approach aims to articulate different theoretical fields to understand the historical linkages between nature, society and health. based on an ethnographic premise, this study considered the unequal and unfair conditions that make ... | 2019 | 31389545 |
| evaluation of bioactivity of aqueous extracts of bougainvillea spectabilis, saraca asoca, and chenopodium album against immature forms of aedes aegypti. | increasing rate of vector transmission of dengue has led to the exponential rise in the mortality and morbidity scales in the past five years. there are various natural and synthetic chemical agents available commercially as potent larvicides, but they are either highly toxic, difficult to obtain, have a high manufacturing cost, or show cross-resistance, hence do not suffice as ideal larvicides. the objective was to screen aqueous extracts of bougainvillea spectabilis (b. spectabilis), saraca as ... | 2019 | 31388235 |
| ovicidal lectins from moringa oleifera and myracrodruon urundeuva cause alterations in chorionic surface and penetrate the embryos of aedes aegypti eggs. | lectins from moringa oleifera seeds (wsmol), myracrodruon urundeuva bark (mubl), and heartwood (muhl) are larvicidal agents against aedes aegypti; in addition, wsmol is an ovicidal agent against this mosquito. in this work, we evaluated the ovicidal activity of mubl and muhl by determining the concentrations that reduce the hatching rates by 50% in 72 h (ec50 ). the effects of wsmol, mubl, and muhl on the ultrastructure of the eggs' surface were assessed by scanning electron microscopy (sem). in ... | 2019 | 31386279 |
| genetic characterization of chikungunya virus in field-caught aedes aegypti mosquitoes collected during the recent outbreaks in 2019, thailand. | chikungunya virus (chikv) is a mosquito-borne virus belonging to the genus alphavirus. the virus is transmitted to humans by the bite of infected female aedes mosquitoes, primarily aedes aegypti. chikv infection is spreading worldwide, and it periodically sparks new outbreaks. there are no specific drugs or effective vaccines against chikv. the interruption of pathogen transmission by mosquito control provides the only effective approach to the control of chikv infection. many studies have shown ... | 2019 | 31382507 |
| human urban arboviruses can infect wild animals and jump to sylvatic maintenance cycles in south america. | the present study shows that the most prominent human arboviruses worldwide (dengue viruses 1, 2, 3, and 4, chikungunya virus, and zika virus) can infect wild animals and transfer from urban to sylvatic maintenance cycles in south america, as did the yellow fever virus (yfv) in the past. all these viruses are transmitted by the anthropophilic mosquito aedes aegypti and cause epidemics throughout brazil. the yfv is the oldest example of an urban arbovirus that became sylvatic in south america. cu ... | 2019 | 31380302 |
| identification of a new type of haematopoietic progenitor kinase-interacting protein (hip-55) in aedes aegypti mosquito haemocytes and its involvement in immunity-like functions in mosquito: a molecular study. | in this study, we characterize the hip-55 protein in the mosquito aedes aegypti for the first time. hip-55 is a 55-kda hpk1-interacting protein that is also called sh3p7. hip-55 constitutively binds hpk1 'via' an hpk1 proline-rich motif 2(pr2) through its c-terminal sh3 domain. hip-55 critically interacts with zap-70, and this interaction was induced by tcr signalling. zap-70 phosphorylated hip-55 at tyr-334 and tyr-344 in vitro and in vivo. in our previous findings, aazap gene expression strong ... | 2019 | 31377908 |
| clti, a kunitz trypsin inhibitor purified from cassia leiandra benth. seeds, exerts a candidicidal effect on candida albicans by inducing oxidative stress and necrosis. | cassia leiandra is an amazonian plant species that is used popularly for the treatment of mycoses. recently, a protease inhibitor, named clti, with insecticidal activity against aedes aegypti, was purified from the mature seeds of c. leiandra. in this work, we show that clti has antifungal activity against candida species and describe its mode of action towards candida albicans. this study is relevant because the nosocomial infections caused by candida species are a global public health problem ... | 2019 | 31376361 |
| aedes aegypti males as vehicles for insecticide delivery. | aedes aegypti continues to spread globally and remains a challenge to control, in part due to its 'cryptic behavior' in that it often deposits eggs (oviposits) in larval habitats that are difficult to find and treat using traditional methods. auto-dissemination strategies target these cryptic breeding sites by employing mosquitoes to deliver lethal doses of insecticide. this report describes the initial field trials of an application known as autodissemination augmented by males (adam), utilizin ... | 2019 | 31374806 |
| dengue cases in colombia: mathematical forecasts for 2018-2022. | introduction dengue is a disease caused by any one of five virus serotypes and transmitted to humans by the aedes aegypti mosquito. climate change and health conditions have combined to make dengue a global public health problem. the situation is especially serious in colombia, where by week 36 of 2018, dengue incidence was 96 cases per 100,000 population, with a total of 111 deaths. different mathematical and statistical models have been proposed to understand the dynamics of transmission and c ... | 2019 | 31373583 |
| precopulatory acoustic interactions of the new world malaria vector anopheles albimanus (diptera: culicidae). | anopheles albimanus is a malaria vector in central america, northern south america and the caribbean. although a public health threat, an. albimanus precopulatory mating behaviors are unknown. acoustics play important roles in mosquito communication, where flight tones allow males to detect and attract potential mates. the importance of sound in precopulatory interactions has been demonstrated in toxorhynchites brevipalpis, aedes aegypti, culex quinquefasciatus and anopheles gambiae; convergence ... | 2019 | 31370863 |
| experimental assessment of zika virus mechanical transmission by aedes aegypti. | the pandemic emergence of several mosquito-borne viruses highlights the need to understand the different ways in which they can be transmitted by vectors to human hosts. in this study, we evaluated the propensity of aedes aegypti to transmit mechanically zika virus (zikv) using an experimental design. mosquitoes were allowed to feed on zikv-infected blood and were then rapidly transferred to feed on zikv-free blood until they finished their meal. the uninfected blood meals, the mosquito abdomens ... | 2019 | 31370135 |
| infection and transmission of cache valley virus by aedes albopictus and aedes aegypti mosquitoes. | cache valley virus (cvv; bunyavirales, peribunyaviridae) is a mosquito-borne arbovirus endemic in north america. although severe diseases are mainly observed in pregnant ruminants, cvv has also been recognized as a zoonotic pathogen that can cause fatal encephalitis in humans. human exposures to cvv and its related subtypes occur frequently under different ecological conditions in the new world; however, neurotropic disease is rarely reported. high prevalence rates of neutralizing antibodies hav ... | 2019 | 31366369 |
| larvicidal activity of essential oil from vitex negundo and vitex trifolia on dengue vector mosquito aedes aegypti. | the ability of vitex trifolia and vitex negundo essential oils to kill aedes aegypti and culex quinquefasciatus larvae was evaluated. | 2019 | 31365621 |
| spatial diffusion of the 2015-2016 zika, dengue and chikungunya epidemics in rio de janeiro municipality, brazil. | different countries, especially brazil, that have faced recurrent dengue epidemics for decades and chikungunya epidemics since 2014, have had to restructure their health services to combat a triple epidemic of arboviruses - zika, dengue and chikungunya - transmitted by the same vector, mainly aedes aegypti, in 2015-2016. several efforts have been made to better understand these three arboviruses. spatial analysis plays an important role in the knowledge of disease dynamics. the knowledge of the ... | 2019 | 31364556 |
| no evidence of zika, dengue, or chikungunya virus infection in field-caught mosquitoes from the recife metropolitan region, brazil, 2015. | background: the recife metropolitan region (rmr), north-eastern brazil, was the epicentre of the 2015 zika virus (zikv) epidemic, which was followed by a 2016 chikungunya virus (chikv) epidemic. it historically has amongst the highest incidence of dengue virus (denv) infections and is the only remaining focus of lymphatic filariasis (lf) in brazil. in early 2015, a molecular xenomonitoring surveillance project focused on culex (cx.) quinquefasciatus commenced to inform lf elimination activities. ... | 2019 | 31363498 |
| the ecological and epidemiological consequences of reproductive interference between the vectors aedes aegypti and aedes albopictus. | vector ecology is integral to understanding the transmission of vector-borne diseases, with processes such as reproduction and competition pivotal in determining vector presence and abundance. the arbovirus vectors aedes aegypti and aedes albopictus compete as larvae, but this mechanism is insufficient to explain patterns of coexistence and exclusion. inviable interspecies matings-known as reproductive interference-is another candidate mechanism. here, we analyse mathematical models of mosquito ... | 2019 | 31362626 |
| the challenge of invasive mosquito vectors in the u.k. during 2016-2018: a summary of the surveillance and control of aedes albopictus. | mosquito-borne diseases resulting from the expansion of two key vectors, aedes aegypti and aedes albopictus (diptera: culicidae), continue to challenge whole regions and continents around the globe. in recent years there have been human cases of disease associated with chikungunya, dengue and zika viruses. in europe, the expansion of ae. albopictus has resulted in local transmission of chikungunya and dengue viruses. this paper considers the risk that ae. aegypti and ae. albopictus represent for ... | 2019 | 31361038 |
| comparative evaluation of an improved test method for bioefficacy of insecticidal fabrics against dengue and malaria vectors. | insecticidal fabrics are important personal protective measures against mosquitoes, ticks and other disease vectors. in the absence of internationally accepted guidelines, bioefficacy tests have been carried out using continuous exposure and three minutes exposure bioassay methods. recently, we have reported an improved method for bioefficacy testing of insecticidal fabrics, which involves continuous exposure of mosquitoes to the test fabrics. the present paper reports the comparative evaluation ... | 2019 | 31358045 |
| serological data shows low levels of chikungunya exposure in senegalese nomadic pastoralists. | the chikungunya virus (chikv) is spread by aedes aegypti and ae. albopictus mosquitos worldwide; infection can lead to disease including joint pain, fever, and rash, with some convalescent persons experiencing chronic symptoms. historically, chikv transmission has occurred in africa and asia, but recent outbreaks have taken place in europe, indonesia, and the americas. from september to october 2014, a survey was undertaken with nomadic pastoralists residing in the northeast departments of seneg ... | 2019 | 31357631 |
| larvicidal and enzymatic inhibition effects of annona muricata seed extract and main constituent annonacin against aedes aegypti and aedes albopictus (diptera: culicidae). | the mosquitoes aedes aegypti and aedes albopictus are vectors of arboviruses that cause dengue, zika and chikungunya. bioactive compounds from plants are environmentally sustainable alternatives to control these vectors and thus the arboviruses transmitted by them. the present study evaluated the larvicidal activity of an acetogenin-rich fraction (acerf) and its main constituent annonacin obtained from annona muricata seeds on ae. aegypti and ae. albopictus. the larvicidal assays were performed ... | 2019 | 31357557 |
| mosquito-borne viruses and insect-specific viruses revealed in field-collected mosquitoes by a monitoring tool adapted from a microbial detection array. | several mosquito-borne diseases affecting humans are emerging or reemerging in the united states. the early detection of pathogens in mosquito populations is essential to prevent and control the spread of these diseases. in this study, we tested the potential applicability of the lawrence livermore microbial detection array (llmda) to enhance biosurveillance by detecting microbes present in aedes aegypti, aedes albopictus, and culex mosquitoes, which are major vector species globally, including ... | 2019 | 31350319 |
| in vitro and in vivo toxicity assessment of selenium nanoparticles with significant larvicidal and bacteriostatic properties. | in the present study, we investigated the larvicidal and bacteriostatic activity of biosynthesized selenium nanoparticles using aqueous berry extract of murraya koenigii (mk-se nps). the synthesized mk-se nps were characterized using uv-visible spectroscopy, x-ray diffraction (xrd), fourier transform infrared (ftir) spectroscopy, transmission electron microscopy (tem), scanning electron microscopy (sem) and energy dispersive x-ray (edx) analysis. xrd analysis revealed the crystalline nature of m ... | 2019 | 31349432 |
| odorant inhibition in mosquito olfaction. | how chemical signals are integrated at the peripheral sensory system of insects is still an enigma. here we show that when coexpressed with orco in xenopus oocytes, an odorant receptor from the southern house mosquito, cquior32, generated inward (regular) currents when challenged with cyclohexanone and methyl salicylate, whereas eucalyptol and fenchone elicited inhibitory (upward) currents. responses of cquior32-cquiorco-expressing oocytes to odorants were reduced in a dose-dependent fashion by ... | 2019 | 31349189 |
| effect of chlorine and temperature on larvicidal activity of cuban bacillus thuringiensis isolates. | the efficacy of biolarvicides may be influenced by species of mosquito, larval age and density, temperature, water quality, bacterial formulation, and others. the aim of this study was to evaluate the influence of temperature and chlorine on larvicidal activity of bacillus thuringiensis cuban isolates against aedes aegypti. | 2019 | 31346534 |
| monitoring indole alkaloid production by penicillium digitatum during infection process in citrus by mass spectrometry imaging and molecular networking. | green mold, caused by penicillium digitatum, is the most destructive post-harvest disease in citrus. secondary metabolites produced by fungal phytopathogens have been associated with toxicity to their respective host through the interaction with a wide range of cell targets. natural products have also been described as important molecules for biocontrol and competition in their respective environment. for p. digitatum, the production of indole alkaloids, tryptoquialanines a and b, have been repo ... | 2019 | 31345413 |
| revisiting alkali metals as a tool to characterize patterns of mosquito dispersal and oviposition. | mark-recapture methods constitute a set of classical ecological tools that are used to collect information on species dispersal and population size. these methods have advanced knowledge in disparate scientific fields, from conservation biology to pest control. gathering information on the dispersal of mosquito species, such as aedes aegypti, has become critical since the recognition of their role as vectors of pathogens. here, we evaluate a method to mark mosquitoes that exploits the rare alkal ... | 2019 | 31344901 |
| autocidal gravid ovitraps protect humans from chikungunya virus infection by reducing aedes aegypti mosquito populations. | public health responses to outbreaks of dengue, chikungunya, and zika virus have been stymied by the inability to control the primary vector, aedes aegypti mosquitos. consequently, the need for novel approaches to aedes vector control is urgent. placement of three autocidal gravid ovitraps (ago traps) in ~85% of homes in a community was previously shown to sustainably reduce the density of female ae. aegypti by >80%. following the introduction of chikungunya virus (chikv) to puerto rico, we cond ... | 2019 | 31344040 |
| detection of wolbachia in field-collected aedes aegypti mosquitoes in metropolitan manila, philippines. | recent reports reveal the presence of wolbachia in ae. aegypti. our study presents additional support for wolbachia infection in ae. aegypti by screening field-collected adult mosquitoes using two wolbachia-specific molecular makers. | 2019 | 31340862 |
| corrigendum to: "screening aedes aegypti (diptera: culicidae) populations from pernambuco, brazil for resistance to temephos, diflubenzuron, and cypermethrin and characterization of potential resistance mechanisms". | 2019 | 31340382 | |
| correlation between cephalic circumference at birth and ocular alterations in patients with microcephaly potentially associated with zika virus infection. | the zika virus (zikv) is an arbovirus isolated for the first time in 1947 and transmitted to humans by the aedes aegypti mosquito. in brasil, it was first detected in may 2015. since then, zikv has been identified as the etiological agent of acute exanthematous disease in brasil, and neuropediatricians of the recife warned about an epidemic of microcephaly, and the brazilian ministry of health confirmed the association between zikv and congenital malformations and neurological syndromes. the eye ... | 2019 | 31340324 |
| efficacy of heterorhabdits indica lpp35 against aedes aegypti in domiciliary oviposition sites. | entomopathogenic nematodes have been evaluated for control of mosquito species for decades. depending on the nematode and mosquito involved, mortality rates of larvae (l) may reach 100% in vitro. nonetheless, nematode efficacy at oviposition sites has rarely been assessed. heterorhabditis indica lpp35 has been shown to kill over 75% of aedes aegypti l3/l4 in cups and bottles outdoors. to assess its efficacy in indoor oviposition sites, different types/sizes of floor drains and pot saucers, and 6 ... | 2019 | 31339672 |
| ctlga9 interacts with alp1 and apn receptors to modulate cry11aa toxicity in aedes aegypti. | the mosquito aedes aegypti is associated with the spread of many viral diseases in humans, including dengue virus (denvs), yellow fever virus (yfv), zika virus (zikv), and chikungunya virus (chikv). bacillus thuringiensis (bt) is widely used as a biopesticide, which produces cry toxins for mosquito control. the cry toxins bind mainly to important receptors, including alkaline phosphatase (alp) and aminopeptidase-n (apn). this work investigated the function of a c-type lectin, ctlga9, in a. aegyp ... | 2019 | 31339308 |
| differences in the transmission of dengue fever by different serotypes of dengue virus. | dengue fever is the most common arbovirus in the world, and all four serotypes are infectious and pathogenic, but dengue virus (denv)-1 and denv-2 are the most prevalent in guangdong province. to investigate the differences in serotypes, we evaluated the replication, pathogenicity, and ns1 expression of denv-2 and denv-3 in cells, and further investigated the effects of ns1 on viral replication and transmission. the results of this study indicated that denv-2 replicated faster and was more patho ... | 2019 | 31503521 |
| identification of critical factors that significantly affect the dose-response in mosquitoes irradiated as pupae. | the sterile insect technique (sit) for use against mosquitoes consists of several steps including the production of the target species in large numbers, the separation of males and females, the sterilization of the males, and the packing, transport and release of the sterile males at the target site. the sterility of the males is the basis of the technique; for this, efficient and standardized irradiation methods are needed to ensure that the required level of sterility is reliably and reproduci ... | 2019 | 31500662 |
| bioengineering of piper longum l. extract mediated silver nanoparticles and their potential biomedical applications. | the present investigation highlights the strong antioxidant, anticancer and larvicidal potential of green synthesized silver nanoparticles (agnps) using aqueous leaf extract of piper longum l. for their diverse therapeutic applications. the optimum conditions for the synthesis of agnps were recorded as 1 mm agno3, 60 ± 2 °c at ph 6 for 120 min. synthesized agnps proved to be highly stable and monodispersed as characterized through various techniques. uv-vis spectrum of biosynthesized agnps showe ... | 2019 | 31500006 |
| implication of sexual transmission of zika on dengue and zika outbreaks. | dengue and zika viruses belong to the same flavivirus family and usually cocirculate within the same area. both the viruses can be transmitted by a common mosquito species aedes aegypti. however, non-vector-borne transmission of zika virus, such as sexual transmission and vertical transmission, has been reported in recent studies. in this study, we develop a dengue-zika coinfection model with a particular focus on the impact of zika sexual transmission to the transmission dynamics of both dengue ... | 2019 | 31499705 |
| differential susceptibility & replication potential of vero e6, bhk-21, rd, a-549, c6/36 cells & aedes aegypti mosquitoes to three strains of chikungunya virus. | chikungunya virus (chikv), a mosquito-borne arthritogenic virus causes infections ranging from febrile illness to debilitating polyarthralgia in humans. re-emergence of the virus has affected millions of people in africa and asia since 2004. during the outbreak, a new lineage of the virus has evolved as an adaptation for enhanced replication and transmission by aedes albopictus mosquito. a study was designed to compare the susceptibility of four vertebrate cell lines, namely vero e6 (african gre ... | 2019 | 31496530 |
| morphological study of aedes aegypti and aedes albopictus (diptera: culicidae) eggs by x-ray computed microtomography. | aedes aegypti and aedes albopictus are vectors of several arboviruses responsible for causing dengue, chikungunya, zika, and yellow fever viruses and microcephaly, resulting in a public health problem in several countries worldwide. even in this scenario, studies on the morphology of mosquito eggs are still lacking. in this paper, x-ray microtomography was used to study mosquito egg morphology. several parameters such as length, surface area, volume, area-by-volume ratio, eccentricity and center ... | 2019 | 31494346 |
| differential response to plant- and human-derived odorants in field surveillance of the dengue vector, aedes aegypti. | linalool oxide (lo) and hexanoic acid (ha) represent plant- and human-derived odorants, respectively, previously found as attractants for the dengue vector aedes aegypti. here, we investigated if a blend of both compounds can improve captures of this mosquito species in field trials in two dengue endemic sites, kilifi and busia counties in kenya. ae. aegypti captures were significantly higher in kilifi than busia (χ21,142 = 170.63, p < 0.0001) and varied by treatments (χ25,137 = 151.19, p = 0.00 ... | 2019 | 31494122 |
| genetic stability of live-attenuated zika vaccine candidates. | zika virus (zikv) has drawn global attention as the etiologic agent of zika congenital syndrome in babies born to infected pregnant women. to prevent future zikv outbreaks and protect persons at risk for severe disease, we developed two live-attenuated vaccine (lav) candidates containing 10- or 20-nucleotide deletions in the 3'utr of the viral genome (δ10 and δ20). after a single-dose immunization, both δ10 and δ20 lavs protected mice and non-human primates against zikv infection. here, we chara ... | 2019 | 31493417 |
| subgenomic flavivirus rna binds the mosquito dead/h-box helicase me31b and determines zika virus transmission by aedes aegypti. | zika virus (zikv) is an arthropod-borne flavivirus predominantly transmitted by aedes aegypti mosquitoes and poses a global human health threat. all flaviviruses, including those that exclusively replicate in mosquitoes, produce a highly abundant, noncoding subgenomic flavivirus rna (sfrna) in infected cells, which implies an important function of sfrna during mosquito infection. currently, the role of sfrna in flavivirus transmission by mosquitoes is not well understood. here, we demonstrate th ... | 2019 | 31488709 |
| applying fuzzy logic to assess the biogeographical risk of dengue in south america. | over the last decade, reports about dengue cases have increase worldwide, which is particularly worrisome in south america due to the historic record of dengue outbreaks from the seventeenth century until the first half of the twentieth century. dengue is a viral disease that involves insect vectors, namely aedes aegypti and ae. albopictus, which implies that, to prevent and combat outbreaks, it is necessary to understand the set of ecological and biogeographical factors affecting both the vecto ... | 2019 | 31488198 |
| waterproof, low-cost, long-battery-life sound trap for surveillance of male aedes aegypti for rear-and-release mosquito control programmes. | sterile male rear-and-release programmes are of growing interest for controlling aedes aegypti, including use an "incompatible insect technique" (iit) to suppress transmission of dengue, zika, and other viruses. under iit, males infected with wolbachia are released into the suppression area to induce cytoplasmic incompatibility in uninfected populations. these and similar mosquito-release programmes require cost-effective field surveys of both sexes to optimize the locations, timing, and quantit ... | 2019 | 31488182 |
| a graph-based approach for finding the dengue infection pathways in humans using protein-protein interactions. | dengue virus (denv) is one of the deadly arboviruses, which is primarily transmitted by aedes aegypti, and causes dengue infection to the humans. according to who, every year around 390 million humans are affected by denv, of which around 50 million deaths are reported. knowledge of the various diseases caused by the denv would greatly encourage to understand the infection mechanism and help to design new antiviral drug discovery. we propose a quasi-clique and quasi-biclique algorithm to classif ... | 2019 | 31486690 |
| vertical transmission of dengue virus in aedes aegypti and its role in the epidemiological persistence of dengue in central and southern mexico. | aedes aegypti and aedes albopictus are the main mosquito species responsible for dengue virus (denv) transmission to humans in the tropical and subtropical regions of the world. the role of vertical transmission in the epidemiology of dengue and the maintenance of this arbovirus in nature during interepidemic periods remain poorly understood, and denv vertical transmission could sustain the existence of virus reservoirs within aedes populations. | 2019 | 31483936 |
| engineered action at a distance: blood-meal-inducible paralysis in aedes aegypti. | population suppression through mass-release of aedes aegypti males carrying dominant-lethal transgenes has been demonstrated in the field. where population dynamics show negative density-dependence, suppression can be enhanced if lethality occurs after the density-dependent (i.e. larval) stage. existing molecular tools have limited current examples of such genetic pest management (gpm) systems to achieving this through engineering 'cell-autonomous effectors' i.e. where the expressed deleterious ... | 2019 | 31479450 |
| travelling arboviruses: a historical perspective. | chikungunya, dengue, yellow fever and zika viruses share many attributes. all are complex and widespread zoonoses of subhuman primates that have made successful transitions to the urban aedes aegypti transmission cycle. more important, they have an established record of travelling, having moved from their place of origin hundreds of years ago, sometimes repeatedly. understanding their epidemiology requires a knowledge of past behaviors including unexplained restraints to their travel. this is a ... | 2019 | 31472285 |
| identification of human skin bacteria attractive to the asian tiger mosquito. | aedes albopictus is a vector of arboviruses and filarial nematodes. originating from asia, this mosquito has rapidly expanded its geographical distribution and colonized areas across both temperate and tropical regions. due to the increase in insecticide resistance, the use of environmentally friendly vector control methods is encouraged worldwide. using methods based on semiochemicals in baited traps are promising for management of mosquito populations. interestingly, human skin microbiota was ... | 2019 | 31464044 |
| quantifying the efficacy of genetic shifting in control of mosquito-borne diseases. | many of the world's most prevalent diseases are transmitted by animal vectors such as dengue transmitted by mosquitoes. to reduce these vector-borne diseases, a promising approach is "genetic shifting": selective breeding of the vectors to be more resistant to pathogens and releasing them to the target populations to reduce their ability to transmit pathogens, that is, lower their vector competence. the efficacy of genetic shifting will depend on possible counterforces such as natural selection ... | 2019 | 31462914 |
| stable distinct core eukaryotic viromes in different mosquito species from guadeloupe, using single mosquito viral metagenomics. | mosquitoes are the most important invertebrate viral vectors in humans and harbor a high diversity of understudied viruses, which has been shown in many mosquito virome studies in recent years. these studies generally performed metagenomics sequencing on pools of mosquitoes, without assessment of the viral diversity in individual mosquitoes. to address this issue, we applied our optimized viral metagenomics protocol (netovir) to compare the virome of single and pooled aedes aegypti and culex qui ... | 2019 | 31462331 |
| climate drives spatial variation in zika epidemics in latin america. | between 2015 and 2017, zika virus spread rapidly through populations in the americas with no prior exposure to the disease. although climate is a known determinant of many aedes-transmitted diseases, it is currently unclear whether climate was a major driver of the zika epidemic and how climate might have differentially impacted outbreak intensity across locations within latin america. here, we estimated force of infection for zika over time and across provinces in latin america using a time-var ... | 2019 | 31455188 |
| breteau index as a promising early warning signal for dengue fever outbreaks in the colombo district, sri lanka. | despite the efforts in reducing vector densities, outbreaks of dengue fever have become a frequent event in sri lanka. as explained by dengue transmission dynamics, vector control activities intensified at peak or near peak outbreak situations would not be successful in controlling the outbreaks. a reliable method of outbreak prediction is always warranted for early preparedness. relationships between the monthly breteau indices of the two vector species (aedes aegypti l. and ae. albopictus skus ... | 2019 | 31454507 |
| investigating the impact of chilling temperature on male aedes aegypti and aedes albopictus survival. | in genetic control programmes, including the sterile insect technique (sit), it is crucial to release insects of the highest quality with maximum survival. it is likely that male mosquitoes will follow the trend of other insects in sit programmes and be stored, transported and eventually released under chilled conditions. the aim of our study was to investigate the impact of different chilling temperatures on male aedes aegypti and ae. albopictus survival by exposing them to a range of temperatu ... | 2019 | 31454400 |
| selection on aedes aegypti alters wolbachia-mediated dengue virus blocking and fitness. | the dengue, zika and chikungunya viruses are transmitted by the mosquito aedes aegypti and pose a substantial threat to global public health. current vaccines and mosquito control strategies have limited efficacy, so novel interventions are needed1,2. wolbachia are bacteria that inhabit insect cells and have been found to reduce viral infection-a phenotype that is referred to as viral 'blocking'3. although not naturally found in a. aegypti4, wolbachia were stably introduced into this mosquito in ... | 2019 | 31451771 |
| mosquito bite prevention through graphene barrier layers. | graphene-based materials are being developed for a variety of wearable technologies to provide advanced functions that include sensing; temperature regulation; chemical, mechanical, or radiative protection; or energy storage. we hypothesized that graphene films may also offer an additional unanticipated function: mosquito bite protection for light, fiber-based fabrics. here, we investigate the fundamental interactions between graphene-based films and the globally important mosquito species, aede ... | 2019 | 31451645 |
| host and viral mechanisms of congenital zika syndrome. | in 2015-2016, in the americas, and especially in northeast brazil, a significant number of cases of microcephaly and other congenital brain abnormalities were linked with an outbreak of zika virus (zikv) infection in pregnant women. while maternal symptoms of zikv are generally mild and self-limiting, clinical presentation in fetuses and newborns infected is extensive and includes microcephaly, decreased cortical development, atrophy and hypoplasia of the cerebellum and cerebellar vermis, arthro ... | 2019 | 31451049 |
| life history traits and predatory performance of belostoma anurum (hemiptera: belostomatidae), a biological control agent of disease vector mosquitoes. | understanding the life cycle and dietary requirements of laboratory-reared insects is critical for optimizing resources (including time) and can provide more reliable ecological basis for using such biological control agents in realistic programs. here, we evaluated the complete development and the predatory abilities of belostoma anurum (herrich-schäffer, 1848) (hemiptera: belostomatidae), an aquatic predator widely distributed in neotropical region, when reared at different diets. we firstly i ... | 2019 | 31446550 |
| exposure of mosquito (aedes aegypti) larvae to the water extract and lectin-rich fraction of moringa oleifera seeds impairs their development and future fecundity. | aedes aegypti control is a key component of the prophylaxis of dengue fever and other diseases. moringa oleifera seeds contain a water-soluble lectin (wsmol) with larvicidal and ovicidal activities against this insect. in this study, a. aegypti individuals were exposed at the third larval instar for 24 h to the water extract (0.1-1.0 mg/ml of protein) or lectin-rich fraction (0.05-0.6 mg/ml of protein) containing wsmol, and then their survival and development were followed for 9 days post-exposu ... | 2019 | 31446169 |
| mitochondrial glycerol phosphate oxidation is modulated by adenylates through allosteric regulation of cytochrome c oxidase activity in mosquito flight muscle. | the huge energy demand posed by insect flight activity is met by an efficient oxidative phosphorylation process that takes place within flight muscle mitochondria. in the major arbovirus vector aedes aegypti, mitochondrial oxidation of pyruvate, proline and glycerol 3-phosphate (g3p) represent the major energy sources of atp to sustain flight muscle energy demand. although adenylates exert critical regulatory effects on several mitochondrial enzyme activities, the potential consequences of alter ... | 2019 | 31446033 |
| deet and other repellents are inhibitors of mosquito odorant receptors for oviposition attractants. | in addition to its primary function as an insect repellent, deet has many "off-label" properties, including a deterrent effect on the attraction of gravid female mosquitoes. deet negatively affects oviposition sites. while deorphanizing odorant receptors (ors) using the xenopus oocyte recording system, we have previously observed that deet generated outward (inhibitory) currents on ors sensitive to oviposition attractants. here, we systematically investigated these inhibitory currents. we record ... | 2019 | 31446031 |
| increased akt signaling in the fat body of anopheles stephensi extends lifespan and increases lifetime fecundity through modulation of insulin-like peptides. | insulin-like peptides (ilps) and the insulin/insulin-like growth factor 1 signaling (iis) cascade regulate numerous physiological functions, including lifespan, reproduction, immunity, and metabolism, in diverse eukaryotes. we previously demonstrated that in female anopheles stephensi and aedes aegypti mosquitoes, activation of the iis cascade in the fat body led to a significant increase in lifespan. in this work, we elucidated two putative mechanisms in a. stephensi behind the observed lifespa ... | 2019 | 31445957 |
| heterologous production and functional characterization of ageritin, a novel type of ribotoxin highly expressed during fruiting of the edible mushroom agrocybe aegerita. | fungi produce various defense proteins against antagonists, including ribotoxins. these toxins cleave a single phosphodiester bond within the universally conserved sarcin-ricin loop of ribosomes and inhibit protein biosynthesis. here, we report on the structure and function of ageritin, a previously reported ribotoxin from the edible mushroom agrocybe aegerita the amino acid sequence of ageritin was derived from cdna isolated from the dikaryon a. aegerita aae-3 and lacks, according to in silico ... | 2019 | 31444206 |
| investigation of relative development and reproductivity fitness cost in three insecticide-resistant strains of aedes aegypti from thailand. | knockdown resistance (kdr) and detoxification enzymes are major resistance mechanisms in insecticide-resistant aedes aegypti throughout the world. persistence of the resistance phenotype is associated with high fitness of resistance alleles in the absence of insecticide pressure. this study determined the relative fitness cost of three insecticide-resistant strains of aedes aegypti-pmd, pmd-r, and upk-r-and a hybrid under similar laboratory conditions in the absence of insecticide. the pmd strai ... | 2019 | 31443487 |
| odorant receptors from culex quinquefasciatus and aedes aegypti sensitive to floral compounds. | mosquitoes rely heavily on the olfactory system to find a host for a bloodmeal, plants for a source of energy and suitable sites for oviposition. here, we examined a cluster of eight odorant receptors (ors), which includes one or, cquior1, previously identified to be sensitive to plant-derived compounds. we cloned 5 ors from culex quinquefasciatus and two ors from aedes aegypti, ie, cquior2, cquior4, cquior5, cquior84, cquior85, aaegor14, and aaegor15 and then deorphanized these receptors using ... | 2019 | 31442487 |
| first report on the transmission of zika virus by aedes (stegomyia) aegypti (l.) (diptera: culicidae) during the 2018 zika outbreak in india. | in a recent outbreak of zika virus (zikv) infection in jaipur city (rajasthan, india), a total of 159 cases were reported in september 2018. in order to identify vector responsible for zika transmission, mosquitoes were collected from houses with reported zika cases and nearby houses. a total of 108 pools containing 522 mosquitoes were tested for presence of zikv using rt-pcr and real time rt-pcr. we detected presence of zikv in three pools of aedes (stegomyia) aegypti (l.), out of a total of 79 ... | 2019 | 31442386 |
| new county records of aedes aegypti and aedes epactius in colorado. | in august and september 2017, we conducted mosquito surveillance in southeastern colorado by using ovitraps and larval sampling. the aim was to determine if there were established populations of aedes aegypti and ae. albopictus in the region. a single female ae. aegypti was reared from eggs collected in la junta, co, but ae. albopictus was not detected. three other species were reared from eggs and/or larvae: ae. epactius, culex restuans, and cx. pipiens. aedes aegypti and ae. epactius were dete ... | 2019 | 31442179 |
| rapid screening of aedes aegypti mosquitoes for susceptibility to insecticides as part of zika emergency response, puerto rico. | in response to the 2016 zika outbreak, aedes aegypti mosquitoes from 38 locations across puerto rico were screened using centers for disease control and prevention bottle bioassays for sensitivity to insecticides used for mosquito control. all populations were resistant to pyrethroids. naled, an organophosphate, was the most effective insecticide, killing all mosquitoes tested. | 2019 | 31538919 |
| black soldier fly (hermetia illucens) larvae powder as a larval diet ingredient for mass-rearing aedes mosquitoes. | the mass production of mosquitoes is becoming more wide-spread due to the increased application of the sterile insect technique (sit) and other genetic control programmes. due to the variable availability and high cost of the bovine liver powder (blp) constituent of many current larval diets, there is an urgent demand for new ingredients in order to support sustainable and efficient mosquito production while reducing rearing cost, without affecting the quality of the insects produced. two black ... | 2019 | 31535969 |
| pyriproxyfen, a juvenile hormone analog, damages midgut cells and interferes with behaviors of aedes aegypti larvae. | juvenile hormone analogs (jha) are known to interfere with growth and biosynthesis of insects with potential for insecticide action. however, there has been comparatively few data on morphological effects of jha on insect organs. to determine pyriproxyfen effects on aedes aegypti larvae, we conducted toxicity, behavioral bioassays and assessed ultrastructural effects of pyriproxyfen on midgut cells. a. aegypti larvae were exposed in aqueous solution of pyriproxyfen lc50 concentrations and evalua ... | 2019 | 31534837 |
| oviposition site attraction of aedes albopictus to sites with conspecific and heterospecific larvae during an ongoing invasion in medellín, colombia. | aedes aegypti and aedes albopictus are two globally invasive vectors with similar ecological niches. encounters between them can result in either competitive exclusion or stable co-existence, but it is unclear what drives these variable outcomes. larval competition in favor of ae. albopictus is a main hypothesis for the competitive exclusion of ae. aegypti observed in some regions. however, the role of oviposition preference in determining the degree of competitive larval interactions in the fie ... | 2019 | 31533784 |
| vector competence: what has zika virus taught us? | the unprecedented outbreak of zika virus (zikv) infection in the americas from 2015 to 2017 prompted the publication of a large body of vector competence data in a relatively short period of time. although differences in vector competence as a result of disparities in mosquito populations and viral strains are to be expected, the limited competence of many populations of the urban mosquito vector, aedes aegypti, from the americas (when its susceptibility is viewed relative to other circulating/r ... | 2019 | 31533267 |
| the genetic structure of aedes aegypti populations is driven by boat traffic in the peruvian amazon. | in the americas, as in much of the rest of the world, the dengue virus vector aedes aegypti is found in close association with human habitations, often leading to high population densities of mosquitoes in urban settings. in the peruvian amazon, this vector has been expanding to rural communities over the last 10-15 years, but to date, the population genetic structure of ae. aegypti in this region has not been characterized. to investigate the relationship between ae. aegypti gene flow and human ... | 2019 | 31532762 |
| update on the distribution of aedes albopictus (diptera: culicidae) in misiones, argentina. | the asian tiger mosquito ( aedes albopictus, diptera: culicidae) has spread rapidly in the last 30 years from its native region in southeast asia. in argentina, studies on its potential distribution suggest that this species could be found in temperate zones of the province of buenos aires. however, since its initial detection in 1998 ae. albopictus is bounded to the subtropical province of misiones. to evaluate the presence and abundance of ae. albopictus in the northeast of argentina, we preli ... | 2019 | 31531624 |
| a rare presentation of coinfection: dengue virus and hepatitis a virus. | dengue fever caused by dengue virus is a common tropical infection transmitted by the mosquitos aedes aegypti and aedes albopictus. four strains of the genus flavivirus is responsible for the epidemics of varying severity. hepatitis a caused by hepatitis a virus is spread by faecal-oral route. the culprit virus is a hepatovirus. coinfection with dengue virus and hepatitis a virus is rare and is a diagnostic as well as management challenge to the medical professional. we report a patient who pres ... | 2019 | 31531251 |
| environmental suitability for aedes aegypti and aedes albopictus and the spatial distribution of major arboviral infections in mexico. | this paper discusses a comparative geographic distribution of aedes aegypti and aedes albopictus mosquitoes in mexico, using environmental suitability modeling and reported cases of arboviral infections. | 2019 | 31528740 |
| host serum iron modulates dengue virus acquisition by mosquitoes. | a blood meal is the primary route through which mosquitoes acquire an arbovirus infection. blood components or their metabolites may regulate the susceptibility of mosquitoes to arboviruses. here we report that serum iron in human blood influences dengue virus acquisition by mosquitoes. dengue virus acquisition by aedes aegypti was inversely correlated with the iron concentration in serum from human donors. in a mouse-mosquito acquisition model, iron supplementation reduced dengue virus prevalen ... | 2019 | 31527795 |
| human odour coding in the yellow fever mosquito, aedes aegypti. | insects use their olfactory systems to obtain chemical information on mating partners, oviposition sites and food. the yellow fever mosquito aedes aegypti, an important vector of human infectious diseases, shows strong preference for human blood meals. this study investigated the chemical basis of host detection by characterizing the neuronal responses of antennal olfactory sensilla of female ae. aegypti to 103 compounds from human skin emanations. the effect of blood feeding on the responses of ... | 2019 | 31527631 |
| use of maldi-tof ms to identify the culturable midgut microbiota of laboratory and wild mosquitoes. | mosquitoes are responsible for transmitting many pathogens to humans and aedes aegypti, aedes albopictus and culex quinquefasciatus are important vectors in the world. the microbiota plays an important role in developmental studies that involve impacts on the biological cycle of mosquitoes and vector control strategies. in this study, the aim was to understand the environment plays in the microbiota culturable diversity of aedes aegytpi, aedes albopictus and culex quinquefasciatus. midgut of stu ... | 2019 | 31525322 |
| toxic effect of essential oil and its compounds isolated from sphaeranthus amaranthoides burm. f. against dengue mosquito vector aedes aegypti linn. | aedes aegypti is a major mosquito vector that can transfer many deadly diseases such as dengue, chikungunya, zika, and yellow fever viruses. due to the developing resistance among the vector populations by the application of chemical insecticides, alternative eco-friendly vector management strategies are being focused. in this aspect, the present study was carried out to evaluate the mosquitocidal potentials of essential oil of sphaeranthus amaranthoides (eo-sa). eo-sa was found to be effective ... | 2019 | 31519251 |
| cyp-mediated resistance and cross-resistance to pyrethroids and organophosphates in aedes aegypti in the presence and absence of kdr. | aedes aegypti thrives in urban environments and transmits several debilitating human viral diseases. thus, our ability to control this mosquito species in endemic areas is of utmost importance. the use of insecticides, mostly pyrethroids and organophosphates (ops), has long been the primary means of controlling a. aegypti, but widespread insecticide resistance has emerged. the two main mechanisms of pyrethroid resistance in a. aegypti are cyp-mediated detoxification and mutations in the target s ... | 2019 | 31519246 |
| chemical composition of the essential oil and n-hexane extract of stachys tmolea subsp. tmolea boiss., an endemic species of turkey, and their mosquitocidal activity against dengue vector aesdes aegypti. | stachys tmolea subsp. tmolea boiss. is endemic to turkey and is a species of the genus stachys l. which is one of the largest genera of the family lamiaceae with about 300 species. the aims of this study were to examine the chemical composition of the essential oil and n-hexane extract of s. tmolea subsp. tmolea as natural sources of insecticidal activity against the dengue vector, aedes aegypti. analysis of the essential oil by gc-fid and gas chromatography-mass spectrometry (gc-ms) systems ide ... | 2019 | 31516330 |
| temporal pattern of mutations in the knockdown resistance (kdr) gene of aedes aegypti mosquitoes sampled from southern taiwan. | aedes mosquitoes are the principal dengue vector in taiwan, where the use of insecticides is a key element in the national control strategy. however, control efforts are constrained by the development of resistance to most insecticides, including pyrethroids. in this study, mutations in the voltage-gated sodium channel (vgsc) gene resulting in knockdown resistance (kdr) were examined in aedes aegypti. fragments of the vgsc gene were polymerase chain reaction (pcr)-amplified followed by restricti ... | 2019 | 31516108 |
| transgenic aedes aegypti mosquitoes transfer genes into a natural population. | in an attempt to control the mosquito-borne diseases yellow fever, dengue, chikungunya, and zika fevers, a strain of transgenically modified aedes aegypti mosquitoes containing a dominant lethal gene has been developed by a commercial company, oxitec ltd. if lethality is complete, releasing this strain should only reduce population size and not affect the genetics of the target populations. approximately 450 thousand males of this strain were released each week for 27 months in jacobina, bahia, ... | 2019 | 31506595 |
| endemic disease control agents' perception on the fight against aedes aegypti and the prevention of arbovirus infections in brazil. | arboviruses pose a serious and constant threat to public health, and have demanded surveillance efforts worldwide. the prevention of arbovirus transmission depends on effective measures to control vectors and promote health. the objective of this study was to examine the factors that enhance and impair the endemic disease control agents' field work, based on their own perspective. | 2019 | 31584945 |
| vectors of arboviruses in the state of são paulo: 30 years of aedes aegypti and aedes albopictus. | to describe the infestation of the municipalities of são paulo by the vectors aedes aegypti and aedes albopictus, characterize seasonality and analyze average temperatures and larval densities. | 2019 | 31576944 |
| knockout of juvenile hormone receptor, methoprene-tolerant, induces black larval phenotype in the yellow fever mosquito, aedes aegypti. | the yellow fever mosquito, aedes aegypti, vectors human pathogens. juvenile hormones (jh) control almost every aspect of an insect's life, and jh analogs are currently used to control mosquito larvae. since rna interference does not work efficiently during the larval stages of this insect, jh regulation of larval development and mode of action of jh analogs are not well studied. to overcome this limitation, we used a multiple single guide rna-based crispr/cas9 genome-editing method to knockout t ... | 2019 | 31570611 |
| discovery of an aedes (stegomyia) albopictus population and first records of aedes (stegomyia) aegypti in canada. | a population of aedes (stegomyia) albopictus (skuse) (diptera: culicidae), a vector of chikungunya, dengue, yellow fever, and zika and west nile viruses, has been detected in windsor, ontario, canada from 2016 onwards. here, we describe its seasonal distribution, as well as the various aquatic habitats from which this species was collected and its larval co-habitation. we collected immatures from tires, treeholes, extruded polystyrene foam containers, discarded plastic cups, old recycling bins a ... | 2019 | 31566765 |
| cluster containment strategy: addressing zika virus outbreak in rajasthan, india. | india is at risk of zika virus transmission due to high prevalence of its vector aedes aegypti. rajasthan, a state in the north-west region of india, has also high prevalence of aedes mosquito. first laboratory confirmed case of zika virus disease in rajasthan was reported on 21 september 2018 in jaipur. the government of rajasthan quickly implemented a containment strategy to contain the outbreak and prevent further spread of this disease. strategy included active human and mosquito surveillanc ... | 2019 | 31565402 |
| action of metarhizium brunneum (hypocreales: clavicipitaceae) against organophosphate- and pyrethroid-resistant aedes aegypti (diptera: culicidae) and the synergistic effects of phenylthiourea. | dengue, yellow fever, zika, and chikungunya arboviruses are endemic in tropical countries and are transmitted by aedes aegypti. resistant populations of this mosquito against chemical insecticides are spreading worldwide. this study aimed to evaluate the biological effects of exposure of pesticide-sensitive ae. aegypti larvae (rockefeller) to conidia of the entomopathogen, metarhizium brunneum, laboratory strains arsef 4556 and v275, and any synergistic activity of phenylthiourea (ptu). in addit ... | 2019 | 31559435 |
| evidence-based process for prioritizing positive behaviors for promotion: zika prevention in latin america and the caribbean and applicability to future health emergency responses. | since the 2015 zika outbreak in latin america and the caribbean, a plethora of behavior change messages have been promoted to reduce zika transmission. one year after the united states agency for international development (usaid) initiated its zika response, more than 30 variants of preventive behaviors were being promoted. this situation challenged social and behavior change (sbc) programming efforts that require a coordinated response and agreed upon set of focus behaviors to be effective. to ... | 2019 | 31558597 |
| de novo genome sequencing and comparative stage-specific transcriptomic analysis of dirofilaria repens. | the zoonotic mosquito-borne filarial nematode dirofilaria repens causes subcutaneous and ocular infections in dogs, cats and humans. from infected vertebrate hosts, microfilariae are taken up by mosquitoes and develop into infective l3. these are transmitted to new vertebrate hosts and develop over two further moults to adult worms. the aims of the project were (i) the de novo sequencing and annotation of the d. repens genome and (ii) comparative transcriptomic analyses of the two developmental ... | 2019 | 31557466 |
| globe-trotting aedes aegypti and aedes albopictus: risk factors for arbovirus pandemics. | introduction: two species of aedes (ae.) mosquitoes (ae. aegypti and ae. albopictus) are primary vectors for emerging arboviruses that are a significant threat to public health and economic burden worldwide. distribution of these vectors and the associated arboviruses, such as dengue virus, chikungunya virus, yellow fever virus, and zika virus, was for a long time restricted by geographical, ecological, and biological factors. presently, arbovirus emergence and dispersion are more rapid and geog ... | 2019 | 31556813 |
| reducing the cost and assessing the performance of a novel adult mass-rearing cage for the dengue, chikungunya, yellow fever and zika vector, aedes aegypti (linnaeus). | the widespread emergence of resistance to insecticides used to control adult aedes mosquitoes has made traditional control strategies inadequate for the reduction of various vector populations. therefore, complementary vector control methods, such as the sterile insect technique, are needed to enhance existing efforts. the technique relies on the rearing and release of large numbers of sterile males, and the development of efficient and standardized mass-rearing procedures and tools is essential ... | 2019 | 31553724 |
| liaisons dangereuses: cross-border gene flow and dispersal of insecticide resistance-associated genes in the mosquito aedes aegypti from brazil and french guiana. | in recent years, south america has suffered the burden of continuous high impact outbreaks of dengue, chikungunya and zika. aedes aegypti is the main mosquito vector of these arboviruses and its control is the only solution to reduce transmission. | 2019 | 31553370 |
| aedes spp. and their microbiota: a review. | aedes spp. are a major public health concern due to their ability to be efficient vectors of dengue, chikungunya, zika, and other arboviruses. with limited vaccines available and no effective therapeutic treatments against arboviruses, the control of aedes spp. populations is currently the only strategy to prevent disease transmission. host-associated microbes (i.e., microbiota) recently emerged as a promising field to be explored for novel environmentally friendly vector control strategies. in ... | 2019 | 31551973 |
| non-canonical transcriptional regulation of heme oxygenase in aedes aegypti. | heme oxygenase (ho) is a ubiquitous enzyme responsible for heme breakdown, which yields carbon monoxide (co), biliverdin (bv) and ferrous ion. here we show that the aedes aegypti heme oxygenase gene (aeho - aael008136) is expressed in different developmental stages and tissues. aeho expression increases after a blood meal in the midgut, and its maximal transcription levels overlaps with the maximal rate of the further modified a. aegypti biglutaminyl-biliverdin (aebv) pigment production. ho is a ... | 2019 | 31551499 |
| conspecific and allospecific larval extracts entice mosquitoes to lay eggs and may be used in attract-and-kill control strategy. | one of the strategies of integrated vector management is to lure gravid mosquitoes for surveillance purposes or to entice them to lay eggs in water containing toxins that kill the offspring (attract-and-kill or trap-and-kill). typically, the major challenge of this approach is the development of a lure that stimulates oviposition plus a toxin with no deterrent effect. bacillus thuringiensis var. israelensis (bti) satisfies the latter criterion, but lures for these autocidal gravid traps are sore ... | 2019 | 31551447 |