Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
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| a novel densovirus isolated from the asian tiger mosquito displays varied pathogenicity depending on its host species. | mosquito-borne viral diseases (mbvds) continue to pose a significant global public health burden. mosquito control remains a core intervention strategy in integrated mosquito management (imm) programs to reduce the transmission of mbvds. mosquito densoviruses (mdvs) are mosquito-specific entomopathogenic viruses, and their attractive biological and pathogenic characteristics make mdvs potential biological control agents as alternatives to traditional chemical pesticides. however, different viral ... | 2019 | 31333635 |
| 'swimming mosquitoes': a key stepping stone to prevent dengue, zika and chikungunya: an educative experience in colima, mexico. | dengue, zika and chikungunya arboviruses (dzc), mainly transmitted by mosquito aedes aegypti, are global health public issues affecting 390 million people each year. in most endemic countries, vector control strategies have been focused on reducing breeding sites and adult mosquito populations. most health communication strategies have pointed out adult mosquito as the main responsible of the transmission, persuading people to eliminate domestic containers. however, it is not clear how should pe ... | 2019 | 31329869 |
| susceptibility and alterations by diflubenzuron in larvae of aedes aegypti. | benzoylphenyl ureas inhibit chitin synthesis and interfere with the molting process in arthropods. in this study, the effect of diflubenzuron on third-instar larvae of aedes aegypti was evaluated. the susceptibility to the product was determined, and the alterations generated were shown through light and electron microscopy. lc50 and lc90 were 0.23 and 0.47 ppm, respectively. the main alterations observed were the incapacity to complete the molt, a reduction of mobility, the fragmentation of the ... | 2019 | 31328823 |
| visual-olfactory integration in the human disease vector mosquito aedes aegypti. | mosquitoes rely on the integration of multiple sensory cues, including olfactory, visual, and thermal stimuli, to detect, identify, and locate their hosts [1-4]. although we increasingly know more about the role of chemosensory behaviors in mediating mosquito-host interactions [1], the role of visual cues is comparatively less studied [3], and how the combination of olfactory and visual information is integrated in the mosquito brain remains unknown. in the present study, we used a tethered-flig ... | 2019 | 31327719 |
| mosquito host-seeking regulation: targets for behavioral control. | female aedes aegypti mosquitoes require protein from blood to develop eggs. they have evolved a strong innate drive to find and bite humans and engorge on their blood. decades of research have revealed that attraction to hosts is suppressed for days after blood-feeding. during this time, females coordinate complex physiological changes, allowing them to utilize blood protein to develop eggs: clearing excess fluid, digesting protein, and egg maturation. how do mechanosensation, nutrient consumpti ... | 2019 | 31326312 |
| too "sexy" for the field? paired measures of laboratory and semi-field performance highlight variability in the apparent mating fitness of aedes aegypti transgenic strains. | evaluating and improving mating success and competitive ability of laboratory-reared transgenic mosquito strains will enhance the effectiveness of proposed disease-control strategies that involve deployment of transgenic strains. two components of the mosquito rearing process, larval diet quantity and aquatic environment - which are linked to physiological and behavioural differences in adults - are both relatively easy to manipulate. in mosquitoes, as for many other arthropod species, the quali ... | 2019 | 31324262 |
| hydrophobic nanoprecipitates formed by benzoylphenylureas and β-cyclodextrin inclusion compounds: synthesis, characterization and toxicity against aedes aegypti larvae. | the aim of this work was to synthesize and characterize the inclusion compounds formed by the complexation of β-cyclodextrin (βcd) with insecticides from the class of benzoylphenylureas (bpus), named novaluron (nov) and diflubenzuron (dif), beyond evaluate their larvicidal activity against aedes aegypti larvae. solid state characterization by ftir showed changes in the main peaks of bpus and βcd, suggesting the formation of inclusion compounds in solid phase. dta and tga thermal analysis showed ... | 2019 | 31321326 |
| mosquito vectors of arboviruses in french polynesia. | the circulation of arthropod-borne viruses (arboviruses) throughout the pacific is no exception in french polynesia (fp). we review here the mosquito vectors involved or potentially involved in the transmission of arboviruses in fp. we highlight aedes aegypti and aedes polynesiensis; species that are widely distributed in fp and whose ability to transmit dengue, zika and chikungunya viruses is well known. in addition, we discuss the contribution of those species and the abundant culex annulirost ... | 2019 | 31316821 |
| evaluation of inflammatory skin infiltrate following aedes aegypti bites in sensitized and non-sensitized mice reveals saliva-dependent and immune-dependent phenotypes. | during probing and blood feeding, haematophagous mosquitoes inoculate a mixture of salivary molecules into their vertebrate hosts' skin. in addition to the anti-haemostatic and immunomodulatory activities, mosquito saliva also triggers acute inflammatory reactions, especially in sensitized hosts. here, we characterize the oedema and the cellular infiltrate following aedes aegypti mosquito bites in the skin of sensitized and non-sensitized balb/c mice by flow cytometry. ae. aegypti bites induced ... | 2019 | 31315156 |
| agbr1 antibodies delay lethal aedes aegypti-borne west nile virus infection in mice. | west nile virus (wnv) is transmitted by mosquitoes and can cause severe disease, including meningoencephalitis. agbr1 is a mosquito salivary protein that enhances aedes aegypti mosquito-borne zika virus pathogenesis in mice. here, we show that agbr1 antibodies reduce the initial west nile viral load and delay lethal infection after feeding by an infected aedes aegypti mosquito. targeting agbr1 may therefore be incorporated into strategies to prevent mosquito-transmitted west nile virus infection ... | 2019 | 31312526 |
| natural vertical transmission of zika virus in larval aedes aegypti populations, morelos, mexico. | we characterized natural vertical transmission of zika virus in pools of aedes aegypti larvae hatched from eggs collected in jojutla, morelos, mexico. of the 151 pools analyzed, 17 tested positive for zika virus rna; infectious zika virus was successfully isolated from 1 of the larvae pools (31n) in c6/36 cells. real-time quantitative pcr and indirect immunofluorescence assays confirmed the identity of the isolate, named zika virus isolate 31n; plaque assays in vero cells demonstrated the isolat ... | 2019 | 31310224 |
| expression of bacillus thuringiensis toxin cyt2ba in the entomopathogenic fungus beauveria bassiana increases its virulence towards aedes mosquitoes. | the entomopathogenic fungus beauveria bassiana has been widely used to kill mosquito larvae and adults in the laboratory and field. however, its slow action of killing has hampered its widespread application. in our study, the b. bassiana fungus was genetically modified to express the bacillus thuringiensis (bt) toxin cyt2ba to improve its efficacy in killing mosquitoes. | 2019 | 31306427 |
| ai- modelling of molecular identification and feminization of wolbachia infected aedes aegypti. | the genetic control strategies of vector borne diseases includes the replacement of a vector population by "disease-refractory" mosquitoes and the release of mosquitoes with a gene to control the vector's reproduction rates. wolbachia are common intracellular bacteria that are found in arthropods and nematodes. wolbachia infected male mosquitos have been used in different experimental trials around the world to suppress the target population of aedes aegypti and this genetic control strategy has ... | 2019 | 31302148 |
| eucalyptus camaldulensis properties for use in the eradication of infections. | eucalyptus camaldulensis (e. camaldulensis), called the eucalyptus has so many characteristics such as antimicrobial features. common names include red gum, red chewing gum, river chewing gum, red chewing gum. its class is eucalyptus, which is comprised of 800 species worldwide, but three or four species are found in australia. this tree generally grows on the edge of rivers with continuous or seasonal water. most of the gray clay soils run along the riverside and are exposed to frequent floods, ... | 2019 | 31300120 |
| tracking genetic invasions: genome-wide single nucleotide polymorphisms reveal the source of pyrethroid-resistant aedes aegypti (yellow fever mosquito) incursions at international ports. | biological invasions are increasing globally in number and extent despite efforts to restrict their spread. knowledge of incursion pathways is necessary to prevent new invasions and to design effective biosecurity protocols at source and recipient locations. this study uses genome-wide single nucleotide polymorphisms (snps) to determine the origin of 115 incursive aedes aegypti(yellow fever mosquito) detected at international ports in australia and new zealand. we also genotyped mosquitoes at th ... | 2019 | 31297145 |
| location, seasonal and functional characteristics of water-holding containers with juvenile aedes albopictus in urban southern taiwan: a cross-sectional study. | urban kaohsiung city (kc), in southern taiwan, has experienced annual dengue epidemics for decades despite considerable vector control efforts. substantial research has been undertaken to characterize aedes aegypti breeding habitats, but no systematic assessment has been completed for aedes albopictus present in kc. | 2019 | 31294804 |
| development of the major arboviral vector aedes aegypti in urban drain-water and associated pyrethroid insecticide resistance is a potential global health challenge. | aedes aegypti were found developing in the water in open public drains (drain-water, dw) in jaffna city in northern sri lanka, a location where the arboviral diseases dengue and chikungunya are endemic. | 2019 | 31287014 |
| a mosquito workshop and community intervention: a pilot education campaign to identify risk factors associated with container mosquitoes in san pedro sula, honduras. | dengue poses a significant public health threat and results in ~96 million clinical cases every year. central america is a region burdened by neglected tropical diseases, including dengue. the primary vectors of dengue, aedes aegypti and aedes albopictus, are widely distributed in honduras. additionally, sustained and consistent mosquito control is lacking in the country. successful control of container mosquitoes relies heavily on participation from community leaders, stakeholders, and the comm ... | 2019 | 31284544 |
| intercepted mosquitoes at new zealand's ports of entry, 2001 to 2018: current status and future concerns. | mosquito vectors are extending their range via international travel and trade. climate change makes new zealand an increasingly suitable environment for less tropically adapted exotic mosquito vectors to become established. this shift will add a multiplier effect to existing risks of both the establishment of new species and of resident exotic species extending into new areas. we describe trends in the border interceptions of exotic mosquitoes and evaluate the role of imported goods as a pathway ... | 2019 | 31284464 |
| vertical transmission of zika virus (flaviviridae, flavivirus) in amazonian aedes aegypti (diptera: culicidae) delays egg hatching and larval development of progeny. | zika virus (zikv) has emerged as a globally important arbovirus and has been reported from all states of brazil. the virus is primarily transmitted to humans through the bite of an infective aedes aegypti (linnaeus, 1762) or aedes albopictus (skuse, 1895). however, it is important to know if zikv transmission also occurs from ae. aegypti through infected eggs to her offspring. therefore, a zikv and dengue virus (denv) free colony was established from eggs collected in manaus and maintained until ... | 2019 | 31278737 |
| using genetic variation in aedes aegypti to identify candidate anti-dengue virus genes. | transcriptomic profiling has generated extensive lists of genes that respond to viral infection in mosquitoes. these gene lists contain two types of genes; (1) those that are responsible for the insect's natural antiviral defense mechanisms, including some known innate immunity genes, and (2) genes whose change in expression may occur simply as a result of infection. as genetic modification tools for mosquitoes continue to improve, the opportunities to make refractory insects via allelic replace ... | 2019 | 31272403 |
| spatial distribution of aedes aegypti (diptera: culicidae) in vulnerable areas for the transmission of arboviruses. | areas at risk of transmission of arboviruses have been monitored using ovitraps. this study aimed to evaluate the spatial distribution of aedes aegypti in vulnerable areas for the transmission of arboviruses and assess the influence of climatic conditions on the infestation of these culicids. | 2019 | 31271613 |
| insecticide resistance status of aedes aegypti and aedes albopictus mosquitoes in papua new guinea. | aedes aegypti and ae. albopictus are important vectors of infectious diseases, especially those caused by arboviruses such as dengue, chikungunya and zika. aedes aegypti is very well adapted to urban environments, whereas ae. albopictus inhabits more rural settings. pyrethroid resistance is widespread in these vectors, but limited data exist from the southwest pacific region, especially from melanesia. while aedes vector ecology is well documented in australia, where incursion of ae. albopictus ... | 2019 | 31269965 |
| aedes vector surveillance in the southeastern united states reveals growing threat of aedes japonicus japonicus (diptera: culicidae) and aedes albopictus. | mosquito-borne diseases are on the rise globally, and have the potential to thrive along the gulf coast of the united states, where subtropical conditions may facilitate the introduction or movement of mosquito vectors. despite surveillance efforts, aedes aegypti (l.) had not been detected in the gulf state of alabama for nearly three decades. the detection of ae. aegypti in alabama may suggest remnant or reemergent populations of this vector. we conducted adult sampling between may and august o ... | 2019 | 31268136 |
| a salivary protein of aedes aegypti promotes dengue-2 virus replication and transmission. | although dengue is the most prevalent arthropod-borne viral disease in humans, no effective medication or vaccine is presently available. previous studies suggested that mosquito salivary proteins influence infection by the dengue virus (denv) in the mammalian host. however, the effects of salivary proteins on denv replication within the aedes aegypti mosquito remain largely unknown. in this study, we investigated the effect of a specific salivary protein (named aasg34) on denv serotype 2 (denv2 ... | 2019 | 31265906 |
| inhibition of juvenile hormone synthesis in mosquitoes by the methylation inhibitor 3-deazaneplanocin a (dznep). | juvenile hormone (jh), synthesized by the corpora allata (ca), controls development and reproduction in mosquitoes through its action on thousands of jh-responsive genes. these jh-dependent processes can be studied using tools that increase or decrease jh titers in vitro and in vivo. juvenile hormone acid methyl transferase (jhamt) is a critical jh biosynthetic enzyme. jhamt utilizes the methyl donor s-adenosyl-methionine (sam) to methylate farnesoic acid (fa) into methyl farnesoate (mf), releas ... | 2019 | 31265905 |
| combinations of plant essential oil based terpene compounds as larvicidal and adulticidal agent against aedes aegypti (diptera: culicidae). | insecticidal plant-based compound(s)in combinations may show synergistic or antagonistic interactions against insect pest. considering the rapid spread of the aedes borne diseases and increasing resistance among aedes population against conventional insecticides, twenty-eight combinations of plant essential oil-based terpene compounds were prepared and tested against larval and adult stages ofaedes aegypti. initially five plant essential oils (eos) were assessed for their larvicidal and adultici ... | 2019 | 31263222 |
| pluripotency of wolbachia against arboviruses: the case of yellow fever. | background: yellow fever outbreaks have re-emerged in brazil during 2016-18, with mortality rates up to 30%. although urban transmission has not been reported since 1942, the risk of re-urbanization of yellow fever is significant, as aedes aegypti is present in most tropical and sub-tropical cities in the world and still remains the main vector of urban yfv. although the yfv vaccine is safe and effective, it does not always reach populations at greatest risk of infection and there is an acknowle ... | 2019 | 31259313 |
| general visual and contingent thermal cues interact to elicit attraction in female aedes aegypti mosquitoes. | female aedes aegypti mosquitoes use multiple sensory modalities to hunt human hosts and obtain a blood meal for egg production. attractive cues include carbon dioxide (co2), a major component of exhaled breath [1, 2]; heat elevated above ambient temperature, signifying warm-blooded skin [3, 4]; and dark visual contrast [5, 6], proposed to bridge long-range olfactory and short-range thermal cues [7]. any of these sensory cues in isolation is an incomplete signal of a human host, and so a mosquito ... | 2019 | 31257144 |
| transcriptomic analysis of aedes aegypti innate immune system in response to ingestion of chikungunya virus. | aedes aegypti (l.) is the primary vector of emergent mosquito-borne viruses, including chikungunya, dengue, yellow fever, and zika viruses. to understand how these viruses interact with their mosquito vectors, an analysis of the innate immune system response was conducted. the innate immune system is a conserved evolutionary defense strategy and is the dominant immune system response found in invertebrates and vertebrates, as well as plants. rna-sequencing analysis was performed to compare targe ... | 2019 | 31252518 |
| estimating past, present, and future trends in the global distribution and abundance of the arbovirus vector aedes aegypti under climate change scenarios. | background:aedes aegypti is the principal vector for several important arbovirus diseases, including dengue, chikungunya, yellow fever, and zika. while recent empirical research has attempted to identify the current global distribution of the vector, the seasonal, and longer-term dynamics of the mosquito in response to trends in climate, population, and economic development over the twentieth and the twenty-first century remains to be elucidated. methods: in this study, we use a process-based ma ... | 2019 | 31249824 |
| wolbachia prevalence, diversity, and ability to induce cytoplasmic incompatibility in mosquitoes. | to protect humans and domestic animals from mosquito borne diseases, alternative methods to chemical insecticides have to be found. pilot studies using the vertically transmitted bacterial endosymbiont wolbachia were already launched in different parts of the world. wolbachia can be used either in incompatible insect technique (iit), to decrease mosquito population, or to decrease the ability of mosquitoes to transmit pathogens. not all mosquito species are naturally infected with wolbachia: whi ... | 2019 | 31247412 |
| the taste of water. | female mosquitos require a specific ion-channel protein to sense the presence of fresh water in which they can lay their eggs. | 2019 | 31246169 |
| the basic plan of the adult heart is conserved across different species of adult mosquitoes, but the morphology of heart-associated tissues varies. | the heart is a pivotal organ in insects because it performs a number of different tasks, such as circulating nutrients, hormones, and excreta. in this study, the morphologies of the heart and associated tissues, including pericardial cells (pcs) and alary muscles (ams), in the hematophagous mosquitoes anopheles aquasalis curry (diptera: culicidae), aedes aegypti l. (diptera: culicidae), and culex quinquefasciatus say (diptera: culicidae), and the phytophagous toxorhynchites theobaldi dyar & knab ... | 2019 | 31245826 |
| pcr-based bloodmeal analysis of aedes aegypti and culex quinquefasciatus (diptera: culicidae) in st. george parish, grenada. | blood-feeding patterns of mosquitoes affect the transmission and maintenance of arboviral diseases. in the caribbean, aedes aegypti (l.) and culex quinquefasciatus say mosquitoes are the dominant mosquito species in developed areas. however, no information is available on the bloodmeal hosts of these invasive vectors in grenada, where arboviral pathogens such as dengue, chikungunya, and zika viruses cause significant human suffering. to this end, ae. aegypti and cx. quinquefasciatus mosquitoes w ... | 2019 | 31245825 |
| mosquito larvicidal potential of hydroxy-2-methyl-4h-pyran-4-one (maltol) isolated from the methanol root extract of senecio laetus edgew. and its in-silico study. | in the present study, hydroxy-2-methyl-4h-pyran-4-one was isolated from the methanol root extract of senecio laetus and was identified by ft-ir, 1h, 13c nmr and gc-ms. the larvicidal potential of the compound 3-hydroxy-2-methyl-4h-pyran-4-one was evaluated against the 4th instar larvae of anopheles stephensi, aedes aegypti and culex quinquefasciatus at concentrations ranging from 20 to 1.25 ppm under laboratory conditions. the compound showed 100% mortality at 20 ppm against all the tested mosqu ... | 2019 | 31244340 |
| a t164s mutation in the dengue virus ns1 protein is associated with greater disease severity in mice. | dengue viruses cause severe and sudden human epidemics worldwide. the secreted form of the nonstructural protein 1 (sns1) of dengue virus causes vascular leakage, a hallmark of severe dengue disease. here, we reverse engineered the t164s mutation of ns1, associated with the severity of dengue epidemics in the americas, into a dengue virus serotype 2 mildly infectious strain. the t164s mutant virus decreased infectious virus production and increased sns1 production in mammalian cell lines and hum ... | 2019 | 31243154 |
| cell-fusing agent virus reduces arbovirus dissemination in aedes aegypti mosquitoes in vivo. | aedes aegypti mosquitoes are the main vectors of arthropod-borne viruses (arboviruses) of public health significance, such as the flaviviruses dengue virus (denv) and zika virus (zikv). mosquitoes are also the natural hosts of a wide range of viruses that are insect specific, raising the question of their influence on arbovirus transmission in nature. cell-fusing agent virus (cfav) was the first described insect-specific flavivirus, initially discovered in an a. aegypti cell line and subsequentl ... | 2019 | 31243123 |
| synergistic terpene combinations as larvicides against the dengue vector aedes aegypti linn. | most of the essential oils (eo) known for mosquitocidal activity contain terpenes as part of their chemical constituents. in this study, four monoterpenes namely γ-terpinene (t), r-(+)-limonene (l), carvacrol (c), and trans-anethole (a) were screened against late third instar aedes aegypti linn. larvae singly and in combination to find out the synergistic interaction. the monoterpenes γ-terpinene, r-(+)-limonene, trans-anethole, and carvacrol showed larvicidal activity with lc50 values of 9.76, ... | 2019 | 31241777 |
| cloning, expression and activity of atp-binding protein in bacillus thuringiensis toxicity modulation against aedes aegypti. | bacillus thuringiensis israelensis (bti) is a widely used mosquitocidal microbial pesticide due to its high toxicity. atp-binding proteins (abp) are prevalently detected in insects and are related to reaction against bti toxins. however, the function of abp in mosquito biocontrol is little known, especially in aedes aegypti. therefore, this study aimed to clarify the function of abp in ae. aegypti against bti toxin. | 2019 | 31238963 |
| reflections from an old queenslander: can rear and release strategies be the next great era of vector control? | in this perspective, i discuss the great eras of vector control, centring on aedes aegypti, the primary vector of dengue, zika and several other viruses. since the discovery and acceptance of the role of mosquitoes as vectors of disease agents, several significant strategies have been developed and deployed to control them and the diseases they transmit. environmental management, insecticides and, to a lesser extent, biological control have emerged as great eras of vector control. in the past de ... | 2019 | 31238839 |
| rna interference-mediated knockdown of 3, 4-dihydroxyphenylacetaldehyde synthase affects larval development and adult survival in the mosquito aedes aegypti. | the cuticle is an indispensable structure that protects the mosquito against adverse environmental conditions and prevents pathogen entry. while most cuticles are hard and rigid, some parts of cuticle are soft and flexible to allow movement and blood-feeding. it has been reported that 3, 4-dihydroxyphenylacetaldehyde (dopal) synthase is associated with flexible cuticle formation in aedes aegypti. however, the molecular function of dopal synthase in the ontogenesis of mosquito remains largely unk ... | 2019 | 31234914 |
| larvicidal compounds extracted from helicteres velutina k. schum (sterculiaceae) evaluated against aedes aegypti l. | helicteres velutina k. schum (sterculiaceae), a member of malvaceae sensu lato, is a brazilian endemic plant that has been used by the indigenous tribe pankarare as an insect repellent. a previous study has reported the isolation of terpenoids, flavonoids and pheophytins, in addition to the larvicidal activity of crude h. velutina extracts derived from the aerial components (leaves, branches/twigs, and flowers). the present study reports the biomonitoring of the effects of fractions and isolated ... | 2019 | 31234501 |
| insecticide resistance in aedes aegypti: an impact from human urbanization? | in the city of magelang, indonesia, the distribution of dengue haemorhagic fever (dhf) cases tend to be clustered, ever changing along with human urbanization from 2014 to 2017. although dhf cases have been less reported in the city of magelang for the past 5 years, vector control measures by using insecticide space spraying, particularly permethrin, have been continuously performed. current study aimed to detect kdr mutations associated with pyrethroid resistance in ae. aegypti and to study pos ... | 2019 | 31233517 |
| utilization of electrocoagulation for the isolation of alkaloids from the aerial parts of stemona aphylla and their mosquitocidal activities against aedes aegypti. | the electrocoagulation (ec) technique is an alternative method of isolating natural products with the advantage of minimizing the amounts of organic solvents required for this process, which are often harmful to the environment. in this research, the ec and the conventional solvent extraction methods were used in the isolation of stemona alkaloids from the aerial parts of stemona aphylla. a comparison was made between the amounts of the isolated alkaloids and the solvents used. the isolated alka ... | 2019 | 31398781 |
| 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 |