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dc.contributor.authorMuñoz, Joaquín
dc.contributor.authorRuiz, Santiago
dc.contributor.authorSoriguer, Ramón
dc.contributor.authorAlcaide, Miguel
dc.contributor.authorViana, Duarte S
dc.contributor.authorRoiz, David
dc.contributor.authorVazquez, Ana 
dc.contributor.authorFiguerola, Jordi
dc.identifier.citationPLoS One. 2012;7(6):e39549es_ES
dc.description.abstractBACKGROUND: Mosquito feeding behaviour determines the degree of vector-host contact and may have a serious impact on the risk of West Nile virus (WNV) epidemics. Feeding behaviour also interacts with other biotic and abiotic factors that affect virus amplification and transmission. METHODOLOGY/PRINCIPAL FINDINGS: We identified the origin of blood meals in five mosquito species from three different wetlands in SW Spain. All mosquito species analysed fed with different frequencies on birds, mammals and reptiles. Both 'mosquito species' and 'locality' explained a similar amount of variance in the occurrence of avian blood meals. However, 'season of year' was the main factor explaining the presence of human blood meals. The differences in diet resulted in a marked spatial heterogeneity in the estimated WNV transmission risk. Culex perexiguus, Cx. modestus and Cx. pipiens were the main mosquito species involved in WNV enzootic circulation since they feed mainly on birds, were abundant in a number of localities and had high vector competence. Cx. perexiguus may also be important for WNV transmission to horses, as are Cx. pipiens and Cx. theileri in transmission to humans. Estimates of the WNV transmission risk based on mosquito diet, abundance and vector competence matched the results of previous WNV monitoring programs in the area. Our sensitivity analyses suggested that mosquito diet, followed by mosquito abundance and vector competence, are all relevant factors in understanding virus amplification and transmission risk in the studied wild ecosystems. At some of the studied localities, the risk of enzootic circulation of WNV was relatively high, even if the risk of transmission to humans and horses was less. CONCLUSIONS/SIGNIFICANCE: Our results describe for first time the role of five WNV candidate vectors in SW Spain. Interspecific and local differences in mosquito diet composition has an important effect on the potential transmission risk of WNV to birds, horses and humans.es_ES
dc.description.sponsorshipThis work was partially supported by projects RNM118, RNM157 and P07-RNM-02511 of the Junta de Andalucía, the European Union FP7 grants HEALTH.2010.2.3.3-3 Project 261391 EuroWestNile, and HEALTH.2010.Single-stage Project 261504 EDENEXT, and the Spanish Ministry of Science project (CGL2009-11445). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. No additional external funding received for this study.es_ES
dc.publisherPublic Library of Science (PLOS) es_ES
dc.subject.meshAnimals es_ES
dc.subject.meshCulex es_ES
dc.subject.meshFeeding Behavior es_ES
dc.subject.meshInsect Vectors es_ES
dc.subject.meshSpain es_ES
dc.subject.meshWest Nile Fever es_ES
dc.subject.meshWest Nile virus es_ES
dc.titleFeeding patterns of potential West Nile virus vectors in south-west Spaines_ES
dc.typejournal articlees_ES
dc.rights.licenseAtribución 4.0 Internacional*
dc.contributor.funderUnión Europea. Comisión Europea. 7 Programa Marco 
dc.contributor.funderRegional Government of Andalusia (España) 
dc.contributor.funderMinisterio de Ciencia (España) 
dc.identifier.journalPloS onees_ES
dc.repisalud.centroISCIII::Centro Nacional de Microbiologíaes_ES
dc.rights.accessRightsopen accesses_ES

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