Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [new altitudinal registration of aedes aegypti in the region of piura, peru]. | 2019 | 30517515 | |
| co-occurrence of v1016i and f1534c mutations in the voltage-gated sodium channel and resistance to pyrethroids in aedes aegypti (l.) from the colombian caribbean region. | knockdown resistance is conferred primarily by non-synonymous mutations that reduce pyrethroids binding to voltage-gated sodium channels. in 2014, kdr mutation v1016i in aedes aegypti populations resistant to pyrethroids was reported for the first time in colombiα, in 2016 another kdr mutation, f1534c, and in 2018 the mutation v419l. nine populations of a. aegypti, previously characterized as being resistant to λ-cyhalothrin, deltamethrin, cyfluthrin and permethrin, were used for this study. gen ... | 2019 | 30520256 |
| a gut commensal bacterium promotes mosquito permissiveness to arboviruses. | mosquitoes are hematophagous vectors that can acquire human viruses in their intestinal tract. here, we define a mosquito gut commensal bacterium that promotes permissiveness to arboviruses. antibiotic depletion of gut bacteria impaired arboviral infection of a lab-adapted aedes aegypti mosquito strain. reconstitution of individual cultivable gut bacteria in antibiotic-treated mosquitoes identified serratia marcescens as a commensal bacterium critical for efficient arboviral acquisition. s. marc ... | 2019 | 30595552 |
| a simple model to predict the potential abundance of aedes aegypti mosquitoes one month in advance. | the mosquito aedes (stegomyia) aegypti (l.) is the primary vector of dengue, chikungunya, and zika viruses in the united states. surveillance for adult ae. aegypti is limited, hindering understanding of the mosquito's seasonal patterns and predictions of areas at elevated risk for autochthonous virus transmission. we developed a simple, intuitive empirical model that uses readily available temperature and humidity variables to predict environmental suitability for low, medium, or high potential ... | 2019 | 30594264 |
| the tudor protein veneno assembles the ping-pong amplification complex that produces viral pirnas in aedes mosquitoes. | piwi-interacting rnas (pirnas) comprise a class of small rnas best known for suppressing transposable elements in germline tissues. the vector mosquito aedes aegypti encodes seven piwi genes, four of which are somatically expressed. this somatic pirna pathway generates pirnas from viral rna during infection with cytoplasmic rna viruses through ping-pong amplification by the piwi proteins ago3 and piwi5. yet, additional insights into the molecular mechanisms mediating non-canonical pirna producti ... | 2019 | 30566680 |
| container size alters the outcome of interspecific competition between aedes aegypti (diptera: culicidae) and aedes albopictus. | aedes aegypti l. and aedes albopictus skuse co-occur in a variety of water-filled containers where they compete for resources. larvae of ae. albopictus skuse often outcompete those of ae. aegypti l., but variation in biotic and abiotic parameters can modify the outcome of this interspecific competition. we tested whether container size can alter the magnitude and direction of intra- and interspecific competition by rearing three ae. aegypti and ae. albopictus larval combinations (100:0, 50:50 an ... | 2019 | 30566608 |
| bioactivity of wild carrot (daucus carota, apiaceae) essential oil against mosquito larvae. | invasive alien plants wreak havoc on native ecosystems and using them as a source of biopesticides could improve their management. we examined the toxicity of essential oil of wild carrot (also known as 'queen anne's lace', daucus carota linnaeus), an aggressive invader throughout the united states, against aedes aegypti l., culex pipiens l., and culex restuans theobald larvae. comparisons were made between essential oil extracted from umbels of local populations of wild carrot versus a commerci ... | 2019 | 30566578 |
| seroprevalence of zika virus among asymptomatic pregnant mothers and their newborns in the najran region of southwest saudi arabia. | zika virus (zikv) is a teratogenic flavivirus that can cause microcephaly. its main vector, aedes aegypti, has been previ.ously identified in saudi arabia, but no zikv infection has yet been reported. nevertheless, the country is at risk from zikv because it receives many travelers throughout the year, including pilgrims from zikv-endemic countries. | 2019 | 30531174 |
| mechanisms of pyrethroid resistance in aedes (stegomyia) aegypti from colombia. | in colombia aedes (stegomyia) aegypti is the main vector of urban arboviruses such as dengue, chikungunya and zika. this urban mosquito has a well-established capacity to develop insecticide resistance to different types of insecticides (pyrethroids, organochlorides, organophosphates), using multiple resistance mechanisms. an understanding of ongoing resistance mechanisms is critical to determining the activities of vector control programs. in order to identify the biochemical and molecular mech ... | 2019 | 30552882 |
| proteins, transcripts, and genetic architecture of seminal fluid and sperm in the mosquito aedes aegypti. | the yellow fever mosquito, aedes aegypti,, transmits several viruses causative of serious diseases, including dengue, zika, and chikungunya. some proposed efforts to control this vector involve manipulating reproduction to suppress wild populations or to replace them with disease-resistant mosquitoes. the design of such strategies requires an intimate knowledge of reproductive processes, yet our basic understanding of reproductive genetics in this vector remains largely incomplete. to accelerate ... | 2019 | 30552291 |
| distinctive regulatory properties of pyruvate kinase 1 from aedes aegypti mosquitoes. | female aedes aegypti mosquitoes are vectors of arboviruses that cause diseases of public health significance. the discovery of new metabolic targets is crucial for improving mosquito control strategies. we recently demonstrated that glucose oxidation supports ammonia detoxification in a. aegypti. pyruvate kinase (pk, ec 2.7.1.40) catalyzes the last step of the glycolytic pathway. in most organisms, one or more allosteric effectors control pk activity. however, the kinetic properties and structur ... | 2019 | 30578824 |
| production of tetravalent dengue virus envelope protein domain iii based antigens in lettuce chloroplasts and immunologic analysis for future oral vaccine development. | dengue fever is a mosquito (aedes aegypti) -transmitted viral disease that is endemic in more than 125 countries around the world. there are four serotypes of the dengue virus (denv 1-4) and a safe and effective dengue vaccine must provide protection against all four serotypes. to date, the first vaccine, dengvaxia (cyd-tdv), is available after many decades' efforts, but only has moderate efficacy. more effective and affordable vaccines are hence required. plants offer promising vaccine producti ... | 2019 | 30578710 |
| comparative efficacy of eucalyptus globulus (labill) hydrodistilled essential oil and temephos as mosquito larvicide. | in this study eucalyptus globulus essential oil was tested on major mosquito species and toxicity was compared with temephos. mortality was calculated after 24 h and 48 h post treatment. in 24 h treatment essential oil show strong larvicidal activity with lc50 and lc90 values were 30.198ppm, 103.389ppm for anopheles stephensi, 13.578ppm, 106.755ppm for aedes aegypti; and, 7.469ppm, 32.454ppm for culex quinquefasciatus and 48 h post treatment lc50 and lc90 values were, 12.576, 49.380ppm for anoph ... | 2019 | 30623679 |
| a novel entomological index, aedes aegypti breeding percentage, reveals the geographical spread of the dengue vector in singapore and serves as a spatial risk indicator for dengue. | aedes aegypti is an efficient primary vector of dengue, and has a heterogeneous distribution in singapore. aedes albopictus, a poor vector of dengue, is native and ubiquitous on the island. though dengue risk follows the dispersal of ae. aegypti, the spatial distribution of the vector is often poorly characterized. here, based on the ubiquitous presence of ae. albopictus, we developed a novel entomological index, ae. aegypti breeding percentage (bp), to demonstrate the expansion of ae. aegypti i ... | 2019 | 30621762 |
| matching the genetics of released and local aedes aegypti populations is critical to assure wolbachia invasion. | traditional vector control approaches such as source reduction and insecticide spraying have limited effect on reducing aedes aegypti population. the endosymbiont wolbachia is pointed as a promising tool to mitigate arbovirus transmission and has been deployed worldwide. models predict a rapid increase on the frequency of wolbachia-positive ae. aegypti mosquitoes in local settings, supported by cytoplasmic incompatibility (ci) and high maternal transmission rate associated with the wmelbr strain ... | 2019 | 30620733 |
| identification and characterization of a mosquito-specific eggshell organizing factor in aedes aegypti mosquitoes. | mosquito-borne diseases are responsible for several million human deaths annually around the world. one approach to controlling mosquito populations is to disrupt molecular processes or antagonize novel metabolic targets required for the production of viable eggs. to this end, we focused our efforts on identifying proteins required for completion of embryonic development that are mosquito selective and represent potential targets for vector control. we performed bioinformatic analyses to identif ... | 2019 | 30620728 |
| density-dependent enhanced replication of a densovirus in wolbachia-infected aedes cells is associated with production of pirnas and higher virus-derived sirnas. | the endosymbiotic bacterium wolbachia pipientis has been shown to restrict a range of rna viruses in drosophila melanogaster and transinfected dengue mosquito, aedes aegypti. here, we show that wolbachia infection enhances replication of aedes albopictus densovirus (aaldnv-1), a single stranded dna virus, in aedes cell lines in a density-dependent manner. analysis of previously produced small rnas of aag2 cells showed that wolbachia-infected cells produced greater absolute abundance of virus-der ... | 2019 | 30583288 |
| the aedes aegypti imd pathway is a critical component of the mosquito antifungal immune response. | successful infection of the insect body by entomopathogenic fungi is the result of complex molecular interactions between the host and the invading pathogenic fungi. the mosquito antifungal response is multifaceted and is regulated in part by the toll and jak-stat pathways. here, we assessed the role of the imd pathway in the mosquito ae. aegypti antifungal immune response when challenged with one of two entomopathogenic fungi, beauveria bassiana and isaria javanica. imd pathway components of th ... | 2019 | 30582948 |
| green synthesis of silver-nanoparticles from annona reticulata leaves aqueous extract and its mosquito larvicidal and anti-microbial activity on human pathogens. | silver nanoparticles play a important role in controlling mosquito population as well as multi drug resistant pathogens without causing much harm to humans. in the present study was focused on green synthesis of silver nanoparticles against dengue causing vector (aedes aegypti) and pathogens affecting humans. the synthesized silver nanoparticle was confirmed using uv- absorption spectrum range obtained at 416 nm, xrd, ftir and hr-tem analysis were used to determine the silver nanoparticle morpho ... | 2019 | 30581768 |
| adaptation of aedes aegypti to salinity: characterized by larger anal papillae in larvae. | 2019 | 30618451 | |
| epidemic potential of zika virus in australia: implications for blood transfusion safety. | zika virus (zikv) is transfusion-transmissible. in australia the primary vector, aedes aegypti, is established in the north-east, such that local transmission is possible following importation of an index case, which has the potential to impact on blood transfusion safety and public health. we estimated the basic reproduction number (r 0 ) to model the epidemic potential of zikv in australian locations, compared this with the ecologically similar dengue viruses (denv), and examined possible impl ... | 2019 | 30618208 |
| larvicidal and pupicidal activities of eco-friendly phenolic lipid products from anacardium occidentale nutshell against arbovirus vectors. | aedes aegypti and culex quinquefasciatus are vectors of diseases that constitute public health problems. the discovery of products capable of inhibiting their development which are less harmful to the environment would have a huge impact on vector control. here, natural cashew nut shell liquid (cnsl), technical cnsl, anacardic acid, cardanol, and cardol were isolated from anacardium occidentale and evaluated for larvicidal and pupicidal activity against ae. aegypti and cx. quinquefasciatus under ... | 2019 | 30610586 |
| assessment of combined tools and strategies for aedes aegypti control with low environmental impact. | the control of the mosquito vector aedes aegypti l. (diptera: culicidae) is the main action against dengue, chikungunya, and zika. the excessive use of conventional insecticides has promoted the development of other control methods and strategies with lower environmental impact. we evaluated the effectiveness of applying triflumuron 1 ppm and emptying water-filled containers in a field trial in temperate argentina. both control methods were implemented either individually or combined and regular ... | 2019 | 30607607 |
| alternative strategies for mosquito-borne arbovirus control. | mosquito-borne viruses-such as zika, chikungunya, dengue fever, and yellow fever, among others-are of global importance. although vaccine development for prevention of mosquito-borne arbovirus infections has been a focus, mitigation strategies continue to rely on vector control. however, vector control has failed to prevent recent epidemics and arrest expanding geographic distribution of key arboviruses, such as dengue. as a consequence, there has been increasing necessity to further optimize cu ... | 2019 | 30605475 |
| laboratory evaluation of repellency of traditional czech homemade repellents against aedes aegypti. | in the czech republic, autochtonous transmission of mosquito borne diseases is not common; however, the need for personal protection should not be underestimated. many people still rely on homemade repellents utilizing recipes based on local folk wisdom that are published annually in local czech media. despite minimal disease risk, nuisance biting and potential allergic responses make it essential to evaluate the chemical composition, effect, and duration of four homemade repellents often used a ... | 2019 | 30602280 |
| igg1 and igg4 antibodies against aedes aegypti salivary proteins and risk for dengue infections. | dengue virus (denv) is an arbovirus responsible for a significant number of deaths in latin america. this virus is transmitted through the bite of aedes aegypti, the main mosquito vector, and ae. albopictus. during blood uptake, the mosquito injects its saliva into the host to facilitate the feeding process. mosquito saliva contains potent immunogens capable of inducing antibody production directly related to mosquito bite exposure intensity and disease risk. in this study, we first determined t ... | 2019 | 30601814 |
| fine-scale spatial and temporal dynamics of kdr haplotypes in aedes aegypti from mexico. | as resistance to insecticides increases in disease vectors, it has become exceedingly important to monitor populations for susceptibility. most studies of field populations of aedes aegypti have largely characterized resistance patterns at the spatial scale of the city or country, which may not be completely informative given that insecticide application occurs at the scale of the house or city block. phenotypic resistance to pyrethroids dominates in ae. aegypti, and it has been partially explai ... | 2019 | 30626410 |
| microbial exopolymer-capped selenium nanowires - towards new antibacterial, antibiofilm and arbovirus vector larvicides? | arboviral diseases and microbial pathogens resistant to commercially available drugs are on the rise. herein, a facile microbial-based approach was developed to synthesize selenium nanowires (se nws) using microbial exopolymer (mep) extracted from the bacillus licheniformis (probiotic bacteria). mep-se nws were characterized using uv-visible, xrd, ftir, hr-tem, fe-sem and edx. an uv-visible peak was detected at 330 nm while xrd spectrum data pointed out the crystalline nature of mep-se nws. ftir ... | 2019 | 30685584 |
| complete nmr chemical shift assignments of odorant binding protein 22 from the yellow fever mosquito, aedes aegypti, bound to arachidonic acid. | aedes aegypti mosquitoes are the vector for transmission of dengue, zika and chikungunya viruses. these mosquitos feed exclusively on human hosts for a blood meal. previous studies have established that dengue virus infection of the mosquito results in increased expression of the odorant binding proteins 22 and 10 within the mosquito salivary gland and silencing of these genes dramatically reduces blood-feeding behaviors. odorant binding proteins are implicated in modulating the chemosensory per ... | 2019 | 30684234 |
| toxicity and possible mechanisms of action of honokiol from magnolia denudata seeds against four mosquito species. | this study was performed to determine the toxicity and possible mechanism of the larvicidal action of honokiol, extracted from magnolia denudata seeds, and its 10 related compounds against third-instar larvae of insecticide-susceptible culex pipiens pallens, aedes aegypti, and aedes albopictus and anopheles sinensis resistant to deltamethrin and temephos. honokiol (lc50, 6.13-7.37 mg/l) was highly effective against larvae of all of the four mosquito species, although the toxicity of the compound ... | 2019 | 30674912 |
| chemical composition, aedes mosquito larvicidal activity, and repellent activity against triatoma rubrofasciata of severinia monophylla leaf essential oil. | aedes aegypti and ae. albopictus are key vectors in the spread of arboviruses such as dengue, chikungunya, yellow fever, and zika. triatoma rubrofasciata is an "assassin bug" whose populations and association with humans have dramatically increased and may represent a serious health concern. control of insect vectors is a logical course of action to prevent the spread of these insect-borne infections. this work presents the leaf essential oil composition, mosquito larvicidal activities, and inse ... | 2019 | 30671730 |
| glycosaminoglycan compositional analysis of relevant tissues in zika virus pathogenesis and in vitro evaluation of heparin as an antiviral against zika virus infection. | zika virus (zikv) is an enveloped rna virus from the flavivirus family that can cause fetal neural abnormalities in pregnant women. previously, we established that zikv-ep (envelope protein) binds to human placental chondroitin sulfate (cs), suggesting that cs may be a potential host cell surface receptor in zikv pathogenesis. in this study, we further characterized the gag disaccharide composition of other biological tissues (i.e., mosquitoes, fetal brain cells, and eye tissues) in zikv pathoge ... | 2019 | 30698412 |
| presence of the point mutations val1016gly in the voltage-gated sodium channel detected in a single mosquito from panama. | in panama, arboviroses such as dengue fever, and more recently chikungunya fever and zika disease, are transmitted by aedes aegypti and aedes albopictus. their control is based on the elimination of breeding sites and fogging with pyrethroid insecticides. however, one of the significant issues derived from the prolonged use of pyrethroid insecticide is the development of resistance mechanisms, such as knockdown resistance or kdr. the objective of this study was to evaluate the presence of kdr mu ... | 2019 | 30691518 |
| identification of potential inhibitors from pyriproxyfen with insecticidal activity by virtual screening. | aedes aegypti is the main vector of dengue fever transmission, yellow fever, zika, and chikungunya in tropical and subtropical regions and it is considered to cause health risks to millions of people in the world. in this study, we search to obtain new molecules with insecticidal potential against ae. aegypti via virtual screening. pyriproxyfen was chosen as a template compound to search molecules in the database zinc_natural_stock (znst) with structural similarity using rocs (rapid overlay of c ... | 2019 | 30691028 |
| factors affecting short-range host-seeking for the yellow fever mosquito (diptera: culicidae). | understanding short-range cues (e.g., host odorants, heat, moisture) of host-seeking female aedes aegypti l. is very important for attempts to reduce mosquito bites, to complement current control strategies, and to develop potential spatial repellents. we investigated behavior under semi-field conditions utilizing a new portable uni-port taxis box with a caged chicken host. the combined influences of airflow regimes (0, 1.5, 3, 5, and 6 m/s), distance from host odor (10, 50, 100 cm), host-odor c ... | 2019 | 30689913 |
| predation on eggs of aedes aegypti (diptera: culicidae): temporal dynamics and identification of potential predators during the winter season in a temperate region. | in temperate regions, the populations of aedes aegypti (l.) remain in the egg stage during the cold season. the ability of these eggs to survive until the next favorable season is affected by several mortality factors, including the action of predators. in the present study, we analyzed the temporal dynamics of the loss of eggs and identified predators of ae. aegypti eggs along the unfavorable season in a temperate region of argentina. to this end, eggs were exposed in field conditions in pitfal ... | 2019 | 30689912 |
| rapid loss of resistance to satyrization in invasive mosquitoes and the effects of age on interspecific mating frequency. | in several areas where aedes aegypti (l.) (diptera: culicidae) and aedes albopictus (skuse) (diptera: culicidae) have come in contact following successful invasions, ae. aegypti have been rapidly displaced by ae. albopictus. recent work has confirmed that mating interference, in the form of satyrization, is likely a driving factor in these competitive displacements. however, in sites of sympatry, ae. aegypti females evolve resistance to satyrization, and in the laboratory, satyrization-susceptib ... | 2019 | 30668807 |
| florida aedes aegypti (diptera: culicidae) and aedes albopictus vector competency for zika virus. | zika virus (zikv) first spread into brazil in 2013 and is now present throughout the americas. in 2016, florida witnessed the beginnings of local zikv transmission. no reports of local transmission have been reported for 2018; however, travel related cases continue to be reported. recurrence of local transmission in the united states is a major public health risk in florida where vectors aedes aegypti (diptera: culicidae, linnaeus) and aedes albopictus (diptera: culicidae, skuse) are abundant an ... | 2019 | 30668772 |
| infection pattern of mayaro virus in aedes aegypti (diptera: culicidae) and transmission potential of the virus in mixed infections with chikungunya virus. | mayaro virus (mayv; togaviridae; alphavirus) has drawn increasing attention as an arthropod-borne virus with potential to cause outbreaks among the human populations of the western hemisphere. in the tropical regions of central and south america, the virus exists in sylvatic cycles between mosquitoes and primate reservoirs such as marmosets. although forest-dwelling mosquitoes are regarded as important vectors for mayv, it has been shown previously that the virus can infect and potentially be tr ... | 2019 | 30668762 |
| response of aedes aegypti and aedes albopictus (diptera: culicidae) survival, life history, and population growth to oak leaf and acorn detritus. | aedes albopictus (skuse) (diptera: culicidae) and aedes aegypti (l.) (diptera: culicidae) are invasive container mosquitoes that are of potential medical importance in the southern united states. seeds (acorns) and leaves from oak trees can contribute seasonally to the detritus of larval container habitats. herein, we examined the effect of acorns and leaves from the southern live oak (quercus virginiana mill.), which has a concomitant range with these mosquitoes, on the population performance o ... | 2019 | 30668756 |
| spermathecal filling in aedes aegypti and aedes albopictus: effects of female and male body sizes and species. | the mosquitoes aedes aegypti (l.) (diptera: culicidae) and aedes albopictus (skuse) (diptera: culicidae) are ecologically similar species that have evolved independently in their native ranges, ae. aegypti in africa and ae. albopictus in asia. where their invasive ranges overlap, interspecific mating is facilitated by both species swarming to mate around bloodmeal hosts during daylight. here, we test hypotheses to account for variation in spermathecal filling in females of ae. aegypti and ae. al ... | 2019 | 30668724 |
| arbovirus coinfection and co-transmission: a neglected public health concern? | epidemiological synergy between outbreaks of viruses transmitted by aedes aegypti mosquitoes, such as chikungunya, dengue, and zika viruses, has resulted in coinfection of humans with multiple viruses. despite the potential impact on public health, we know only little about the occurrence and consequences of such coinfections. here, we review the impact of coinfection on clinical disease in humans, discuss the possibility for co-transmission from mosquito to human, and describe a role for modeli ... | 2019 | 30668574 |
| entomological and sociobehavioral components of heartworm (dirofilaria immitis) infection in two florida communities with a high or low prevalence of dogs with heartworm infection. | objective to assess knowledge, attitudes, and practices regarding heartworms (dirofilaria immitis) and mosquito vectors among residents (dog owners and non-dog owners) in 2 neighborhoods in florida and to perform entomological surveys of mosquito species in these neighborhoods and identify mosquito species infected with heartworm. design cross-sectional study. sample 2,572 mosquitoes and 96 residents of 2 northern florida communities. procedures a 32-item questionnaire was orally administered to ... | 2019 | 30668298 |
| effect of meteorological factors on the seasonal prevalence of dengue vectors in upland hilly and lowland terai regions of nepal. | the expansion of dengue vectors from lowland plains to the upland hilly regions of nepal suggests the likelihood of increased risk of dengue. our objective was to assess the effects of meteorological variables on vector indices and populations of dengue vectors in two different ecological regions of nepal. an entomological survey was conducted in kathmandu and lalitpur (upland) and chitwan (lowland) of nepal in three different seasons from july 2015 to may 2016. the effect of meteorological vari ... | 2019 | 30658693 |
| aedes aegypti larvae treated with spinosad produce adults with damaged midgut and reduced fecundity. | the mosquito aedes aegypti is the main vector of dengue, chikungunya, zika, and yellow fever viruses, which are responsible for high human morbidity and mortality. the fight against these pathogens is mainly based on the control of the insect vector with the use of insecticides. among insecticides, spinosad bioinsecticide is efficient against a. aegypti larvae and may be an alternative for vector control. here, we investigate the sublethal effects of spinosad during midgut metamorphosis of a. ae ... | 2019 | 30654260 |
| a role for the insulin receptor in the suppression of dengue virus and zika virus in wolbachia-infected mosquito cells. | wolbachia-infected mosquitoes are refractory to super-infection with arthropod-borne pathogens, but the role of host cell signaling proteins in pathogen-blocking mechanisms remains to be elucidated. here, we use an antibody microarray approach to provide a comprehensive picture of the signaling response of aedes aegypti-derived cells to wolbachia. this approach identifies the host cell insulin receptor as being downregulated by the bacterium. furthermore, sirna-mediated knockdown and treatment w ... | 2019 | 30650347 |
| extremely long viability of aedes aegypti (diptera: culicidae) eggs stored under normal room condition. | the viability of aedes aegypti (linnaeus) eggs was determined by storing the eggs for long period of up to 1,889 d. the viability of eggs declined over time from 88.54 to 4.89% for the storage period of 1-1,883 d (5.15 yr). the percentage of collapsed eggs was inversely proportional to the hatching rate of eggs. in the first day of storage, the eggs remained healthy and intact, and except a few, the eggs were deformed and boat shaped with cleft due to inward shrinkage during long storage of 1,88 ... | 2019 | 30649399 |
| cross-generational effects of heat stress on fitness and wolbachia density in aedes aegypti mosquitoes. | aedes aegypti mosquitoes infected with wolbachia symbionts are now being released into the field to control the spread of pathogenic human arboviruses. wolbachia can spread throughout vector populations by inducing cytoplasmic incompatibility and can reduce disease transmission by interfering with virus replication. the success of this strategy depends on the effects of wolbachia on mosquito fitness and the stability of wolbachia infections across generations. wolbachia infections are vulnerable ... | 2019 | 30642130 |
| application of convolutional neural networks for classification of adult mosquitoes in the field. | dengue, chikungunya and zika are arboviruses transmitted by mosquitos of the genus aedes and have caused several outbreaks in world over the past ten years. morphological identification of mosquitos is currently restricted due to the small number of adequately trained professionals. we implemented a computational model based on a convolutional neural network (cnn) to extract features from mosquito images to identify adult mosquitoes from the species aedes aegypti, aedes albopictus and culex quin ... | 2019 | 30640961 |
| genome-wide transcriptome profiling reveals genes associated with meiotic drive system of aedes aegypti. | aedes aegypti is an important mosquito vector of several arboviruses, including dengue, yellow fever, zika, and chikungunya, which cause significant human morbidity and mortality globally. in certain populations of this mosquito, a native meiotic drive system causes abnormal spermatogenesis that results in highly male-biased progenies from some matings. although the basic genetics and cytogenetics of the drive mechanism were elucidated, very little is known on a transcriptome level about how the ... | 2019 | 30634571 |
| aspergillus flavus (link) toxins reduces the fitness of dengue vector aedes aegypti (linn.) and their non-target toxicity against aquatic predator. | mosquito that accountable for dispersal of dengue fever is aedes aegypti linn. and considered to be a chief vector for dengue especially in south asian countries. aspergillus flavus is considered to be wild growing green yellow colonies and synthesis highly regulating aflatoxins (b1, b2, g1 and g2) as a secondary metabolite. mycotoxins of a. flavus showed its efficacy against iii and iv instars of ae. aegypti with more than 90% mortality at the prominent dosage of 2 × 108 conidia/ml. the proxima ... | 2019 | 30633984 |
| impact of sugar composition on meal distribution, longevity, and insecticide toxicity in aedes aegypti. | toxic sugar baits (tsbs) are an inexpensive and field-applicable approach to deliver a variety of insecticides to sugar-seeking mosquitoes. we reasoned that carbohydrate chemistry could alter the performance and efficacy of tsbs. in this study, the uptake, distribution, and survival of female aedes aegypti provided with twelve different aqueous sugar meals was recorded. sucrose, a standard control sugar used in mosquito rearing, is always diverted to the ventral diverticulum upon ingestion; but ... | 2019 | 30633897 |
| honeysuckle essential oil as a potential source of ecofriendly larvicides for mosquito control. | some plant essential oils have insecticidal properties against mosquitoes and can be harnessed as ecofriendly tools for mosquito control. we conducted bioassays to determine the toxicity of italian honeysuckle (lonicera caprifolium) essential oil and its fractions against larvae of the yellow fever mosquito, aedes aegypti. | 2019 | 30632272 |
| sex and age modulate antennal chemosensory-related genes linked to the onset of host seeking in the yellow-fever mosquito, aedes aegypti. | the mosquito aedes aegypti is the primary vector for the fastest growing infectious disease in the world, dengue fever. disease transmission heavily relies on the ability of female mosquitoes to locate their human hosts. additionally, males may be found in close proximity to humans, where they can find mates. host seeking behaviour of both sexes is dependent on adult sexual maturation. identifying the molecular basis for the onset of host seeking may help to determine targets for future vector c ... | 2019 | 30631085 |
| crossing the mucosal barrier: a commensal bacterium gives dengue virus a leg-up in the mosquito midgut. | commensal bacteria that colonize the midgut of aedes aegypti mosquitoes can influence the transmission of arthropod-borne viruses. in this issue of cell host & microbe, wu et al. (2019) show that serratia marcescens bacteria secrete enhancin proteins that cleave membrane-bound mucins, thereby facilitating dengue virus infection of midgut epithelial cells. | 2019 | 30629911 |
| economic burden of dengue in indonesia. | dengue is associated with significant economic expenditure and it is estimated that the asia pacific region accounts for >50% of the global cost. indonesia has one of the world's highest dengue burdens; aedes aegypti and aedes albopictus are the primary and secondary vectors. in the absence of local data on disease cost, this study estimated the annual economic burden during 2015 of both hospitalized and ambulatory dengue cases in indonesia. | 2019 | 30629593 |
| ocular findings in yellow fever infection. | yellow fever virus (yfv) is a reemerging, potentially lethal arboviral disease that has been occurring recently in africa and south america. poor levels of immunization have facilitated the viral spread in southeastern brazil, leading to an unprecedented outbreak that started in late 2016. although human cases have been linked to sylvatic mosquitoes, the concern is that yfv may spread to urban centers infested with aedes aegypti and aedes albopictus mosquitoes and start a true urban cycle. | 2019 | 30629101 |
| genome sequences of chikungunya virus isolates circulating in midwestern brazil. | chikungunya virus (chikv) is a reemerging arbovirus of the family togaviridae that causes chikv fever, a disease that can extend from weeks to years depending on whether clinical signs of arthralgia persist. chikv is mainly transmitted by aedes aegypti mosquitoes and possibly reached the americas in 2013, causing an outbreak in brazil in 2015. so far, two evolutionary lineages of chikv have been reported in brazil: the asian and the east-central-south african (ecsa) lineages. in this study, six ... | 2019 | 30729309 |
| repellency assessment of nepeta cataria essential oils and isolated nepetalactones on aedes aegypti. | there is an increased need for improved and affordable insect repellents to reduce transmission of rapidly spreading diseases with high mortality rates. natural products are often used when deet cannot be afforded or accessed and when consumers choose not to use a synthetic repellent. the essential oils from two newly bred nepeta cataria (catnip) plants representing two different chemotypes and their respective isolated nepetalactone isomers were evaluated as mosquito repellents against aedes ae ... | 2019 | 30728370 |
| engineered resistance to zika virus in transgenic aedes aegypti expressing a polycistronic cluster of synthetic small rnas. | recent zika virus (zikv) outbreaks have highlighted the necessity for development of novel vector control strategies to combat arboviral transmission, including genetic versions of the sterile insect technique, artificial infection with wolbachia to reduce population size and/or vectoring competency, and gene drive-based methods. here, we describe the development of mosquitoes synthetically engineered to impede vector competence to zikv. we demonstrate that a polycistronic cluster of engineered ... | 2019 | 30723148 |
| genotoxic and mutagenic assessment of spinosad using bioassays with tradescantia pallida and drosophila melanogaster. | spinosad (spn) is a naturally-occurring insecticide obtained from the fermentation process of the actinomycete saccharopolyspora spinosa. owing to the larvicidal action, the compound has been used in the control of aedes aegypti. as a new insecticide commercially available in the market, few data are reported on genotoxic effects in non-target organisms. the objective of the present study was to evaluate the mutagenic effect of spn through the micronucleus test in tradescantia pallida (trad-mcn) ... | 2019 | 30721808 |
| assessment of acute toxicity and cytotoxicity of fluorescent markers produced by cardanol and glycerol, which are industrial waste, to different biological models. | the amphyphylic triazoanilines recently synthesized 1-(4-(3-aminophenyl)-1h-1,2,3- triazole-1-yl)-3-(3-pentadecylphenoxy)propan-2-ol (1) and 1-(4-(4-aminophenyl)-1h- 1,2,3-triazole-1-yl)-3-(3-pentadecylphenoxy)propan-2-ol (2), synthesized from cardanol and glycerol, have photophysical properties which allow their use in the development of fluorescent biomarkers with applicability in the biodiesel quality control. based on this, the present research evaluated the toxic effects of both compounds i ... | 2019 | 30719661 |
| evaluation of enhanced oviposition attractant formulations against aedes and culex vector mosquitoes in urban and semi-urban areas. | surveillance is not only an important tool to assess the population dynamics of vector mosquitoes, but it can also be used to control vector-borne diseases. mosquito vectors that belong to several genera such as anopheles, aedes, and culex play a crucial role in the transmission of malaria, dengue, chikungunya, zika, and elephantiasis diseases worldwide. we tested the efficacy of two commercial-grade oviposition attractant formulations that were developed for the container-inhabiting aedes aegyp ... | 2019 | 30719534 |
| homologs of human dengue-resistance genes, fkbp1b and atcay, confer antiviral resistance in aedes aegypti mosquitoes. | dengue virus (denv) is transmitted by mosquitoes and is a major public health concern. the study of innate mosquito defense mechanisms against denv have revealed crucial roles for the toll, imd, jak-stat, and rnai pathways in mediating denv in the mosquito. often overlooked in such studies is the role of intrinsic cellular defense mechanisms that we hypothesize to work in concert with the classical immune pathways to affect organismal defense. our understanding of the molecular interaction of de ... | 2019 | 30717390 |
| attraction of female aedes aegypti (l.) to aphid honeydew. | plant sugar is an essential dietary constituent for mosquitoes, and hemipteran honeydew is one of the many forms of plant sugar that is important to mosquitoes. many insects rely on volatile honeydew semiochemicals to locate aphids or honeydew itself. mosquitoes exploit volatile semiochemicals to locate sources of plant sugar but their attraction to honeydew has not previously been investigated. here, we report the attraction of female yellow fever mosquitoes, aedes aegypti, to honeydew odorants ... | 2019 | 30717169 |
| analysis of salivary glands and saliva from aedes albopictus and aedes aegypti infected with chikungunya viruses. | chikungunya virus (chikv) is a medically important mosquito-borne virus transmitted to humans by infected aedes (stegomyia) species. in 2013⁻2014, ae. aegypti transmitted chikv to humans in the caribbean and in 2005⁻2006, ae. albopictus transmitted chikv on la réunion island (indian ocean basin). chikv lr2006 opy1 from the la réunion epidemic was associated with a mutation (e1:a226v) in the viral e1 glycoprotein that enhanced chikv transmission by ae. albopictus. chikv r99659 from the caribbean ... | 2019 | 30717086 |
| water-induced strong protection against acute exposure to low subzero temperature of adult aedes albopictus. | as an important vector of dengue and zika, aedes albopictus has been the fastest spreading invasive mosquitoes in the world over the last 3-4 decades. cold tolerance is important for survival and expansion of insects. ae. albopictus adults are generally considered to be cold-intolerant that cannot survive at subzero temperature. however, we found that ae. albopictus could survive for several hours' exposure to -9 to -19 oc so long as it was exposed with water. median lethal time (lt50) of ae. al ... | 2019 | 30716071 |
| pyrethroids use: threats on metabolic-mediated resistance mechanisms in the primary dengue vector aedes aegypti (diptera: culicidae). | the emergence of pyrethroid resistance in aedes aegypti (l.) has limited the success of vector control. early detection of resistance could assist authorities in deciding well-suited control strategies to minimize operational failures of ae. aegypti control. herein, biochemical analysis was performed to investigate the mechanisms involved in pyrethroid resistance in nine populations of indonesian ae. aegypti. enzymes of adult ae. aegypti such as esterases (ests), glutathione-s-transferases (gsts ... | 2019 | 30715464 |
| transcriptional profile of aedes aegypti leucine-rich repeat proteins in response to zika and chikungunya viruses. | aedes aegypti (l.) is the primary vector of chikungunya, dengue, yellow fever, and zika viruses. the leucine-rich repeats (lrr)-containing domain is evolutionarily conserved in many proteins associated with innate immunity in invertebrates and vertebrates, as well as plants. we focused on the aaelrim1 and aaeapl1 gene expressions in response to zika virus (zikv) and chikungunya virus (chikv) infection using a time course study, as well as the developmental expressions in the eggs, larvae, pupae, ... | 2019 | 30708982 |
| the efficiency of a new automated mosquito larval counter and its impact on larval survival. | to achieve consistent and standardized rearing for mosquito immature stages, it is crucial to control the initial number of larvae present in each larval tray. in addition, maintaining an optimal and synchronized development rate of larvae is essential to maximize the pupal production and optimize male sorting in a mass-rearing setting. manual counting is labor intensive, time consuming and error prone. therefore, this study aimed to investigate the use of a customized automated counter for the ... | 2019 | 31092868 |
| infection of aedes albopictus mosquito c6/36 cells with the wmelpop strain of wolbachia modulates dengue virus-induced host cellular transcripts and induces critical sequence alterations in the dengue viral genome. | dengue virus (denv) causes frequent epidemics infecting ∼390 million people annually in over 100 countries. there are no approved vaccines or antiviral drugs for treatment of infected patients. however, there is a novel approach to control denv transmission by the mosquito vectors, aedes aegypti and aedes albopictus, using the wolbachia symbiont. the wmelpop strain of wolbachia suppresses denv transmission and shortens the mosquito life span. however, the underlying mechanism is poorly understoo ... | 2019 | 31092581 |
| microencapsulation of citrus grandis peel oil using interfacial precipitation chemistry technique for repellent application. | essential oil of citrus family plant is known to have repellent effect against mosquito. unfortunately, due to its high volatility effect, its repellency effect was compromised. the incorporation of essential oil in a microencapsulation formulation has been shown to help improve the stability and potency of the repellent. in this study, citrus grandis peel oil (cgpo) was encapsulated by using the interfacial precipitation chemistry technique. the microencapsulated cgpo was then formulated into l ... | 2019 | 31089355 |
| larvicidal, adulticidal, and oviposition-deterrent activity of piper betle l. essential oil to aedes aegypti. | aedes aegypti is a primary vector of many arthropod-borne diseases. one of the diseases, dengue fever, is an endemic disease in indonesia causing high mortalities for decades. there are no preventive and specific treatments for dengue so far. therefore, prevention of this disease largely depends on the mosquito control. since resistance to chemical insecticides occurred worldwide, the study on alternate and new mosquito insecticides are mandatory. this study aimed to demonstrate the effect of es ... | 2019 | 31089304 |
| efficacy of the in2care® auto-dissemination device for reducing dengue transmission: study protocol for a parallel, two-armed cluster randomised trial in the philippines. | mosquito-borne viruses are imposing an ever increasing health burden worldwide. in addition to the recent zika and chikungunya virus epidemics, dengue viruses have become the fastest growing problem with a 40-fold increase in the number of reported cases over the past five decades. current mosquito control techniques involving larval source reduction, larviciding, and space spray of adulticides are costly, laborious, and of debatable efficacy. there remains an urgent need for the development of ... | 2019 | 31088515 |
| the difference of sve-cadherin levels between dengue hemorrhagic fever patients with shock and without shock. | dengue virus infection is an infectious disease caused by the dengue virus and transmitted by the aedes aegypti mosquito. dengue virus (den-v) consists of 4 serotypes, namely den-1, den-2, den-3, and den-4. the most feared result of dhf is death. death in children is caused by hypovolemic shock due to plasma leakage from intravascular to extravascular space due to endothelial dysfunction. | 2019 | 31592274 |
| a peridomestic aedes malayensis population in singapore can transmit yellow fever virus. | the case-fatality rate of yellow fever virus (yfv) is one of the highest among arthropod-borne viruses (arboviruses). although historically, the asia-pacific region has remained free of yfv, the risk of introduction has never been higher due to the increasing influx of people from endemic regions and the recent outbreaks in africa and south america. singapore is a global hub for trade and tourism and therefore at high risk for yfv introduction. effective control of the main domestic mosquito vec ... | 2019 | 31589616 |
| phylogeography and invasion history of aedes aegypti, the dengue and zika mosquito vector in cape verde islands (west africa). | aedes-borne arboviruses have spread globally with outbreaks of vast impact on human populations and health systems. the west african archipelago of cape verde had its first outbreak of dengue in 2009, at the time the largest recorded in africa, and was one of the few african countries affected by the zika virus epidemic. aedes aegypti was the mosquito vector involved in both outbreaks. we performed a phylogeographic and population genetics study of a. aegypti in cape verde in order to infer the ... | 2019 | 31548858 |
| panophthalmitis associated with scleral necrosis in dengue hemorrhagic fever. | dengue is a mosquito-borne flavivirus disease affecting humans. the aedes aegypti mosquito spreads it. ophthalmic manifestations of dengue range from subconjunctival hemorrhage to optic neuropathy. panophthalmitis in dengue fever is a rare finding. we report a case of a 22-year-old male having dengue fever, who presented with pain, redness, swelling and loss of vision in his right eye. he was diagnosed as panophthalmitis with subretinal hemorrhage and required right eye evisceration. | 2019 | 31546563 |
| impacts of hurricanes irma and maria on aedes aegypti populations, aquatic habitats, and mosquito infections with dengue, chikungunya, and zika viruses in puerto rico. | puerto rico was severely impacted by hurricanes irma and maria in september 2017. the island has been endemic for dengue viruses (denv) and recently suffered epidemics of chikungunya (chikv 2014) and zika (zikv 2016) viruses. although severe storms tend to increase the number of vector and nuisance mosquitoes, we do not know how they influence aedes aegypti populations and arboviral transmission. we compared the abundance of female ae. aegypti in autocidal gravid ovitraps (ago traps), container ... | 2019 | 30963992 |
| publisher correction: past and future spread of the arbovirus vectors aedes aegypti and aedes albopictus. | this article was mistakenly not made open access when originally published; this has now been amended, and information about the creative commons attribution 4.0 international license has been added into the 'additional information' section. | 2019 | 30962571 |
| differences in mosquito communities in six cities in oklahoma. | vector-borne diseases in the united states have recently increased as a result of the changing nature of vectors, hosts, reservoirs, pathogens, and the ecological and environmental conditions. current information on vector habitats and how mosquito community composition varies across space and time is vital to successful vector-borne disease management. this study characterizes mosquito communities in urban areas of oklahoma, united states, an ecologically diverse region in the southern great pl ... | 2019 | 30950499 |
| vector competence of australian aedes aegypti and aedes albopictus for an epidemic strain of zika virus. | recent epidemics of zika virus (zikv) in the pacific and the americas have highlighted its potential as an emerging pathogen of global importance. both aedes (ae.) aegypti and ae. albopictus are known to transmit zikv but variable vector competence has been observed between mosquito populations from different geographical regions and different virus strains. since australia remains at risk of zikv introduction, we evaluated the vector competence of local ae. aegypti and ae. albopictus for a braz ... | 2019 | 30946747 |
| linking water quality to aedes aegypti and zika in flood-prone neighborhoods. | the ability of ecosystems to regulate water quality and flood events has been linked to health outcomes, including mosquito-borne illnesses. in the san juan bay estuary watershed of puerto rico, habitat alterations and land-use development have disrupted watershed hydrology, exacerbating wastewater discharges and subjecting some neighborhoods to frequent flooding events. in 2016, the mosquito-borne illness zika became a new cause for concern. we hypothesized that nutrient-enriched flood water co ... | 2019 | 30945160 |
| interpreting mosquito feeding patterns in australia through an ecological lens: an analysis of blood meal studies. | mosquito-borne pathogens contribute significantly to the global burden of disease, infecting millions of people each year. mosquito feeding is critical to the transmission dynamics of pathogens, and thus it is important to understanding and interpreting mosquito feeding patterns. in this paper we explore mosquito feeding patterns and their implications for disease ecology through a meta-analysis of published blood meal results collected across australia from more than 12,000 blood meals from 22 ... | 2019 | 30944025 |
| v1016g point mutation: the key mutation in the voltage-gated sodium channel (vgsc) gene of pyrethroid-resistant aedes aegypti (diptera: culicidae) in indonesia. | resistance to pyrethroid insecticides is widespread in indonesian aedes aegypti (linnaeus), the primary vector of dengue viruses. this study aims to investigate the mutations in the voltage-gated sodium channel (vgsc) conferring pyrethroid resistance against ae. aegypti populations from indonesia. molecular genotyping of mutations using polymerase chain reaction assay and direct dna sequencing were performed at positions 989 and 1,016 in iis6 region, and 1,534 in iiis6 region of the voltage-gate ... | 2019 | 30942885 |
| influence of strategic points in the dispersion of aedes aegypti in infested areas. | to evaluate whether sites with large amount of potential breeding sites for immature forms of aedes aegypti, called strategic points, influence in the active vector's dispersion into properties in their surroundings. | 2019 | 30942271 |
| detrimental effects of induced antibodies on aedes aegypti reproduction. | aedes aegypti (linnaeus) (diptera: culicidae) is the main vector of viruses causing dengue, chikungunya, zika, and yellow fever, worldwide. this report focuses on immuno-blocking four critical proteins in the female mosquito when fed on blood containing antibodies against ferritin, transferrin, one amino acid transporter (naat1), and acetylcholinesterase (ache). peptides from these proteins were selected, synthetized, conjugated to carrier proteins, and used as antigens to immunize new zealand r ... | 2019 | 30941675 |
| correction to: complete nmr chemical shift assignments of odorant binding protein 22 from the yellow fever mosquito, aedes aegypti, bound to arachidonic acid. | the article listed above was initially published with incorrect copyright information. upon publication of this correction, the copyright of the article is changed to "the author(s)". the original article has been corrected. | 2019 | 30941584 |
| glycoprotein hormone receptor knockdown leads to reduced reproductive success in male aedes aegypti. | glycoprotein hormone receptors mediate a diverse range of physiological functions in vertebrate and invertebrate organisms. the heterodimeric glycoprotein hormone gpa2/gpb5 and its receptor lgr1, constitute a recently discovered invertebrate neuroendocrine signaling system that remains to be functionally characterized. we previously reported that lgr1 is expressed in the testes of adult aedes aegypti mosquitoes, where its immunoreactivity is particularly regionalized. here, we show that lgr1 imm ... | 2019 | 30941056 |
| enhanced mosquitocidal efficacy of colloidal dispersion of pyrethroid nanometric emulsion with benignity towards non-target species. | the rising threat of vector-borne diseases and environmental pollution has instigated the investigation of nanotechnology-based applications. the current study deals with a nanotechnological application involving the usage of nanometric pesticides such as permethrin nanoemulsion. the mean droplet diameter and zeta potential of the prepared permethrin nanoemulsion were found to be 12.4 ± 1.13 nm and -20.4 ± 0.56 mv, respectively. the temporal stability of permethrin nanoemulsion was found to be 4 ... | 2019 | 30939406 |
| endogenous non-retroviral elements in genomes of aedes mosquitoes and vector competence. | recent extensive (re)emergences of arthropod-borne viruses (arboviruses) such as chikungunya (chikv), zika (zikv) and dengue (denv) viruses highlight the role of the epidemic vectors, aedes aegypti and aedes albopictus, in their spreading. differences of vector competence to arboviruses highlight different virus/vector interactions. while both are highly competent to transmit chikv (alphavirus,togaviridae), only ae. albopictus is considered as a secondary vector for denv (flavivirus, flavivirida ... | 2019 | 30938223 |
| larvicidal, histopathological, antibacterial activity of indigenous fungus penicillium sp. against aedes aegypti l and culex quinquefasciatus (say) (diptera: culicidae) and its acetylcholinesterase inhibition and toxicity assessment of zebrafish (danio rerio). | fungal metabolites are considered to be most efficient tools to overcome the issues related to insecticide resistance and environmental pollution. the present study focus on the evaluation of the mosquito larvicidal efficacy of metabolites of seven indigenous fungal isolates (penicillium sp. aspergillus niger, a. flavus, a. parasiticus, rhizopus sp. mucor sp. and aspergillus sp.) on the larvae of aedes aegypti and culex quinquefasciatus under the laboratory condition. the preliminary screening o ... | 2019 | 30936853 |
| local transmission of zika virus in miami-dade county: the florida department of health rises to the challenge. | as early as 2015, florida and centers for disease control and prevention (cdc) public health officials recognized the potential danger of zika for us residents and visitors. the zika virus, a mosquito-borne flavivirus, is transmitted through the bite of the aedes aegypti mosquito. a physician in miami-dade notified the florida department of health (doh) of the first non-travel-related zika case in the united states. a 23-year old pregnant woman had presented on july 7, 2016, at 23 weeks of gesta ... | 2019 | 30933006 |
| aedes aegypti mosquitoes detect acidic volatiles found in human odor using the ir8a pathway. | mosquitoes use olfaction as a primary means of detecting their hosts. previously, the functional ablation of a family of aedes aegypti olfactory receptors, the odorant receptors (ors), was not sufficient to reduce host seeking in the presence of carbon dioxide (co2). this suggests the olfactory receptors that remain, such as the ionotropic receptors (irs), could play a significant role in host detection. to test this, we disrupted the ir8a co-receptor in ae. aegypti using crispr/cas9. we found t ... | 2019 | 30930038 |
| evaluation of toxicity and environmental safety in use of spinosad to rationalize control strategies against aedes aegypti. | spinosad is a naturally-occurring insecticide used for the management of ae. aegypti larvae. the assessment of ecotoxicological parameters of spinosad is required for verifying the environmentally-friendly behavior of the compound and for evaluating toxicity values on non-target species. thus, the aim of the study was to conduct toxicity tests using daphnia magna as model organism after exposure to different concentrations of spinosad. immobility effects were observed in both acute and chronic t ... | 2019 | 30927668 |
| preliminary screening of mosquito spatial distribution in togo: with special focus on the aedes (diptera: culicidae) species. | the togolese republic has a tropical and humid climate which constitutes an ideal environment for mosquitoes to breed and transmit diseases. the aedes mosquito is known to transmit yellow fever (yf), dengue, chikungunya, and zika viruses in west africa. togo has been suffering from yf virus transmission, despite vaccination efforts. unfortunately, there is scarcity in the data that reflect mosquito spatial distribution in togo, specifically possible yf vectors. in the current study, mosquito sur ... | 2019 | 30927005 |
| voltage-gated sodium channel intron polymorphism and four mutations comprise six haplotypes in an aedes aegypti population in taiwan. | knockdown resistance (kdr) to dichlorodiphenyltrichloroethane (ddt) and pyrethroids is known to link amino acid substitutions in the voltage-gated sodium channel (vgsc) in aedes aegypti. dengue fever primarily transmitted by ae. aegypti is an annual public health issue in taiwan. accordingly, pyrethroid insecticides have been heavily used for decades to control mosquito populations in the summer and autumn. in taiwan, an ae. aegypti population with two vgsc mutations, v1016g and d1763y, was desc ... | 2019 | 30925149 |
| the electronic song "scary monsters and nice sprites" reduces host attack and mating success in the dengue vector aedes aegypti. | sound and its reception are crucial for reproduction, survival, and population maintenance of many animals. in insects, low-frequency vibrations facilitate sexual interactions, whereas noise disrupts the perception of signals from conspecifics and hosts. despite evidence that mosquitoes respond to sound frequencies beyond fundamental ranges, including songs, and that males and females need to struggle to harmonize their flight tones, the behavioral impacts of music as control targets remain unex ... | 2019 | 30922800 |
| use of mechanical and behavioural methods to eliminate female aedes aegypti and aedes albopictus for sterile insect technique and incompatible insect technique applications. | sex separation of mosquitoes at different stages is currently being attempted to ensure the successful release of male mosquitoes in novel vector control approaches. mechanical and behavioral techniques have been tried most frequently. | 2019 | 30922368 |
| investigating the probability of establishment of zika virus and detection through mosquito surveillance under different temperature conditions. | because of the increasing threat that zika virus (zikv) poses to more sub-tropical area due to increased global travel, there is a need for better understanding of the effect(s) of temperature on the establishment potential of zikv within these subtropical, temperate, and/or seasonal ae. aegypti populations. the first step to determining risk establishment of zikv in these regions is to assess zikv's ability to infect mosquitoes at less tropical temperatures, and thus be detected through common ... | 2019 | 30921386 |