West Nile Virus Isolation in Human and Mosquitoes, Mexico

Elizondo-Quiroga, Darwin; Davis, C. Todd; Fernández‐Salas, Ildefonso; Escobar-Lopez, Roman; Olmos, Dolores Velasco; Gastalum, Lourdes Cecilia Soto; Acosta, Magaly Aviles; Elizondo-Quiroga, Armando; González-Rojas, José I.; Cordero, Juan Francisco Contreras; Guzmán, Hilda; Rosa, Amélia Travassos da; Blitvich, Bradley J.; Barrett, Alan D.T.; Beaty, Barry J.; Tesh, Robert B.

doi:10.3201/eid1109.050121

Cited by 60 publications

(44 citation statements)

References 15 publications

(22 reference statements)

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“…West Nile virus has been detected from Cx. quinquefasciatus in Nuevo Leon State in northern México (Elizondo-Quiroga et al 2005) but extensive efforts in Mérida City and other locations in Yucatán State have failed to detect West Nile virus in this mosquito species (Farfan-Ale et al 2009, 2010). However, recent studies from Yucatán State revealed the presence in Cx.…”

Section: Discussionmentioning

confidence: 99%

Stormwater drains and catch basins as sources for production of Aedes aegypti and Culex quinquefasciatus

et al. 2014

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We present data showing that structures serving as drains and catch basins for stormwater are important sources for production of the mosquito arbovirus vectors Aedes aegypti and Culex quinquefasciatus in Mérida City, México. We examined 1,761 stormwater drains – located in 45 different neighborhoods spread across the city – over dry and wet seasons from March 2012–March 2013. Of the examined stormwater drains, 262 (14.9%) held water at the time they were examined and 123 yielded mosquito immatures. In total, we collected 64,560 immatures representing nine species. The most commonly encountered species were Cx. quinquefasciatus (n=39,269) and Ae. aegypti (n=23,313). Ae. aegypti and Cx. quinquefasciatus were collected during all 11 months when we found water-filled stormwater drains, and both were found in stormwater drains located throughout Mérida City. We also present data for associations between structural characteristics of stormwater drains or water-related characteristics and the abundance of mosquito immatures. In conclusion, stormwater drains produce massive numbers of Ae. aegypti and Cx. quinquefasciatus across Mérida City, both in the wet and dry seasons, and represent non-residential development sites that should be strongly considered for inclusion in the local mosquito surveillance and control program.

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Section: Discussionmentioning

confidence: 99%

Stormwater drains and catch basins as sources for production of Aedes aegypti and Culex quinquefasciatus

et al. 2014

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“…Although neither virus has yet been detected from the mosquitoes in Mérida City, West Nile virus was detected from Cx. quinquefasciatus in northern México (Elizondo-Quiroga et al 2005) and Cx. nigripalpus in Chiapas State in southern México (Ulloa et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Urban Mosquito Fauna in Mérida City, México: Immatures Collected from Containers and Storm-Water Drains/Catch Basins

Baak-Baak

Arana-Guardia

Cigarroa-Toledo

et al. 2014

Southwestern Entomologist

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We examined the species composition and temporal occurrence of immature mosquitoes in containers and storm-water drains/catch basins from November 2011 to June 2013 in Mérida City, México. A wide range of urban settings were examined, including residential premises, vacant lots, parking lots, and streets or sidewalks with storm-water drains/catch basins. In total, 111,776 specimens of 15 species were recorded. The most commonly collected species were Aedes (Stegomyia) aegypti (L.) (n = 60,961) and Culex quinquefasciatus Say (45,702), which together accounted for 95.4% of the immatures collected. These species were commonly encountered during both rainy and dry seasons, whereas most other mosquito species were collected primarily during the rainy season. Other species collected were Aedes (Howardina) cozumelensis Diaz Najera, Aedes (Ochlerotatus) taeniorhynchus (Wiedemann), Aedes (Ochlerotatus) trivittatus (Coquillett), Culex coronator Dyar and Knab, Culex interrogator Dyar and Knab, Culex lactator Dyar and Knab, Culex nigripalpus Theobald, Culex salinarius Coquillett, Culex tarsalis Coquillett, Culex thriambus Dyar, Haemagogus equinus Theobald, Limatus durhamii Theobald, and Toxorhynchites rutilus (Coquillett). The greatest number of species was recorded from vacant lots (n = 11), followed by storm-water drains/catch basins (nine) and residential premises (six). Our study demonstrated that the heterogeneous urban environment in Mérida City supports a wide range of mosquito species, many of which are nuisance biters of humans and/or capable of serving as vectors of pathogens affecting humans or domestic animals. We also briefly reviewed the medical importance of the encountered mosquito species.

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“…aegypti is an important anthropophilic parasite, being considered as dengue vector (TAUIL, 2001), yellow fever (BRAGA & VALLE, 2007), Zika virus (VASCONCELOS, 2015) and Chikungunya fever (DONALISIO & FREITAS, 2015). Similarly the C. quinquefasciatus has been incriminated as a vector of important filariasis (5) and viral infections (ELIZONDO-QUIROGA et al, 2005;NITATPATTANA et al, 2005;DIAS et al, 2006). Many studies have been conducted in order to combat the proliferation of these insects, including biological control, such as the introduction of fish ( 9,10 and crustaceans 11,12. .…”

Section: Introductionmentioning

confidence: 99%

Primeira Descrição Da Atividade Predatória De Macrobrachium Pantanalense, Macrobrachium Amazonicum, Macrobrachium Brasiliense E Trichodactylus Petropolitanus Contra Larvas De Aedes Aegypti, Anopheles Darling E Culex Quinquefasciatus

Coelho¹,

Buzetti²

2016

COLLOQ VITAE

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RESUMOOs culicídeos atuam na transmissão de sérias doenças aos seres humanos. O objetivo desse estudo é relatar pela primeira vez a atividade predatória de Macrobrachium pantanalense, Macrobrachium amazonicum, Macrobrachium brasiliense e Trichodactylus petropolitanus contra larvas de Aedes aegypti, Anopheles darling e Culex quinquefasciatus. As larvas foram colocadas em aquários com camarões e caranguejos, sendo a atividade predatória avaliada por meio de inspeção visual durante 24 horas. Foi observado que 100% das larvas foram consumidas em até dois minutos. Um fato inédito relatado nesse estudo foi a predação das larvas dos mosquitos A. aegypti, An. darling e C. quinquefasciatus por caranguejos da espécie T. petropolitanus. Estas mesmas espécies de crustáceos foram soltos em corpos d´água onde existem larvas desses insetos. Em apenas 48 horas houve eliminação total da população de larvas nesses locais. Houve acentuada redução na captura de mosquitos adultos pelas armadilhas instaladas nos locais de criadouros, ficando demonstrado que nas áreas onde os crustáceos foram liberados, a atividade predatória contra as larvas dos mosquitos foi suficiente para reduzir o número dos insetos adultos p≤0,05. Concluimos que esta é a primeira descrição da atividade predatória de M. pantanalense, M. amazonicum, M. brasiliense e T. petropolitanus contra larvas de A. aegypti, An. darlingi e C. quinquefasciatus, constituindo assim uma importante ferramenta no controle biológico desses parasitos-vetores. Palavras-chave: Anopheles sp., Chikungunya , Dengue, Malaria, Vectors, Zika vírus FIRST DESCRIPTION OF PREDATORY ACTIVITY OF MACROBRACHIUM PANTANALENSE, MACROBRACHIUM AMAZONICUM, MACROBRACHIUM BRASILIENSE AND TRICHODACTYLUS PETROPOLITANUS ON AEDES AEGYPTI, ANOPHELES DARLING AND CULEX QUINQUEFASCIATUS LARVAE ABSTRACTThe culicides acts in transmission of serious diseases to humans. The objective of this study was to report the predatory activity of Macrobrachium pantanalense, Macrobrachium amazonicum, Macrobrachium brasiliense and Trichodactylus petropolitanus on Aedes aegypti, Anopheles darling and Culex quinquefasciatus larvae. These larvae were placed in aquarium with shrimps, crabs and, the predatory activity was evaluated by visual inspection for 24 hours. Was observed that 100% of the larvae were consumed within two minutes. An unprecedented event reported in this study was the observation of predation of the larvae of A. aegypti, An. darling and C. quinquefasciatus for crabs of species T. petropolitanus. These same species of crustaceans were released in water bodies with the presence of larvae of these insects. In just 48 hours where not collected new larvae in the release sites of shrimps and crabs. The incidence of mosquitoes adults caught in traps have marked reduction, allowing to infer that, in places where the crustaceans were released, the predatory activity on the larvae of mosquitoes was sufficient to reduce the number of adult mosquitoes p≤0,05. We concluded that this is the first description of the predatory acti...

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West Nile Virus Isolation in Human and Mosquitoes, Mexico

Cited by 60 publications

References 15 publications

Stormwater drains and catch basins as sources for production of Aedes aegypti and Culex quinquefasciatus

Stormwater drains and catch basins as sources for production of Aedes aegypti and Culex quinquefasciatus

Urban Mosquito Fauna in Mérida City, México: Immatures Collected from Containers and Storm-Water Drains/Catch Basins

Primeira Descrição Da Atividade Predatória De Macrobrachium Pantanalense, Macrobrachium Amazonicum, Macrobrachium Brasiliense E Trichodactylus Petropolitanus Contra Larvas De Aedes Aegypti, Anopheles Darling E Culex Quinquefasciatus

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