Culex
Mostrando 13-24 de 324 artigos, teses e dissertações.
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13. Culex quinquefasciatus from areas with the highest incidence of microcephaly associated with Zika virus infections in the Northeast Region of Brazil are refractory to the virus
Zika virus (ZIKV) is widely distributed in Brazil and the Northeast Region (NE) is the most affected zone, showing the highest incidence of microcephaly associated with ZIKV congenital infections worldwide. We report attempts to infect three populations of Culex quinquefasciatus from severely affected sites in the NE and Southeast Region (SE) of Brazil with
Mem. Inst. Oswaldo Cruz. Publicado em: 26/06/2017
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14. Spatial distribution of Culicidae (Diptera) larvae, and its implications for Public Health, in five areas of the Atlantic Forest biome, State of São Paulo, Brazil
ABSTRACT In view of the adaptive ability of mosquitoes and their role in the transport of infective agents, entomological surveys undertaken in transitional environments are very important for the determination of the risk they represent for Public Health. Among the principal vectors of the infectious agents involved in the occurrence of important arboviruse
Rev. Bras. entomol.. Publicado em: 2017-04
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15. Vegetation loss and the 2016 Oropouche fever outbreak in Peru
BACKGROUND Oropouche virus causes Oropouche fever, an arboviral disease transmitted mainly by midges of the genus Culicoides and Culex mosquitoes. Clinical presentation of Oropouche fever in humans includes fever, headache, rash, myalgia, and in rare cases spontaneous bleeding and aseptic meningitis. Landscape change has been proposed as a driver of Oropouc
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-04
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16. Host-parasite interaction and impact of mite infection on mosquito population
ABSTRACT During the present study, the host-parasite relationship between mosquitoes and parasitic mites was investigated. The 8954 individuals of male and female mosquitoes belonging to 26 genera: seven each of Aedes and Culex, six of Anopheles and one each of Toxorhynchites, Coquillettidia and Uranotaenia were collected from 200 sites. The male and female
Rev. Bras. entomol.. Publicado em: 2017-04
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17. Ocorrência de Aedes aegypti e Aedes albopictus em bromélias cultivadas no Jardim Botânico Municipal de Bauru, São Paulo, Brasil
Resumo: O objetivo deste trabalho foi observar a ocorrência de larvas de mosquitos, em especial do Aedes aegypti e Aedes albopictus, no tanque e axilas de bromélias do Jardim Botânico Municipal de Bauru, São Paulo, Brasil, destacando implicações epidemiológicas do uso dessas plantas. A maioria de larvas encontradas foi de mosquitos do gênero Culex, e
Cad. Saúde Pública. Publicado em: 23/01/2017
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18. Incidência dos casos de dengue (2007-2013) e distribuição sazonal de culicídeos (2012-2013) em Barreiras, Bahia
Resumo OBJETIVO: descrever a distribuição sazonal de culicídeos e a incidência dos casos de dengue em Barreiras, Bahia, Brasil. MÉTODOS: estudo descritivo com dados primários de distribuição de culicídeos em ovitrampas de abril de 2012 a março de 2013, e com dados secundários do Sistema de Informação de Agravos de Notificação, Vigilância Ep
Epidemiol. Serv. Saúde. Publicado em: 2016-12
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19. Distribution of the members of the Pipiens Assemblage in the sympatric area from Argentina: which is where and when?
Given their medical and veterinary relevance, the members of the Pipiens Assemblage are a worldwide target of ecological research. The distribution of Culex pipiens s.s. and Cx. quinquefasciatus converge in Buenos Aires, Argentina, where hybrids have been detected. Each member of the assemblage exhibits a distinct eco-physiological behaviour that can affect
Mem. Inst. Oswaldo Cruz. Publicado em: 24/10/2016
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20. Molecular detection of flaviviruses and alphaviruses in mosquitoes (Diptera: Culicidae) from coastal ecosystems in the Colombian Caribbean
Arboviruses belonging to the genera Flavivirus and Alphavirus were detected in mosquitoes in a rural area of San Bernardo del Viento (Córdoba, Colombia). A total of 22,180 mosquitoes were collected, sorted into 2,102 pools, and tested by generic/nested reverse transcription-polymerase chain reaction. Venezuelan equine encephalitis virus, dengue virus, West
Mem. Inst. Oswaldo Cruz. Publicado em: 03/10/2016
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21. First detection of natural infection of Aedes aegypti with Zika virus in Brazil and throughout South America
Zika virus (ZIKV) has caused a major epidemic in Brazil and several other American countries. ZIKV is an arbovirus whose natural vectors during epidemics have been poorly determined. In this study, 1,683 mosquitoes collected in the vicinity of ZIKV suspected cases in Rio de Janeiro, Brazil, from June 2015 to May 2016 were screened for natural infection by us
Mem. Inst. Oswaldo Cruz. Publicado em: 03/10/2016
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22. Assessment of the correlation between wing size and body weight in captive Culex quinquefasciatus
Abstract: INTRODUCTION: Mass production of mosquitoes under laboratory conditions allows implementing methods to control vector mosquitoes. Colony development depends on mosquito size and weight. Body size can be estimated from its correlation with wing size, whereas weight is more difficult to determine. Our goal was to test whether wing size can predict
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-08
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23. Larvicidal efficiency of the mushroom Amanitamuscaria (Agaricales, Amanitaceae) against the mosquito Culexquinquefasciatus (Diptera, Culicidae)
Abstract: INTRODUCTION: We report the larvicidal activity of two formulations from Amanita muscariaagainst Culex quinquefasciatus, as well as the viability of the aqueous extract after storage. METHODS The larvicidal activity of aqueous extract and powder from A. muscaria, and the viability of the aqueous extract after storage, were evaluated. RESULTS T
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-02
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24. Mayaro virus and dengue virus 1 and 4 natural infection in culicids from Cuiabá, state of Mato Grosso, Brazil
This study aimed to verify the diversity of Culicidae species and their frequency of infection with flaviviruses and alphaviruses in Cuiabá, state of Mato Grosso, Brazil. Mosquitoes were captured with Nasci aspirators and hand net in 200 census tracts, identified alive at species level and pooled in one-20 (11,090 mosquitoes, 14 species). Female pools (n =
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-01