Zika infection decreases Aedes aegypti locomotor activity but does not influence egg production or viability

dc.creatorPadilha, Karine Pedreira
dc.creatorResck, Maria Eduarda Barreto
dc.creatorCunha, Octávio Augusto Talyuli da
dc.creatorFreitas, Rayane Teles de
dc.creatorCampos, Stéphanie Silva
dc.creatorSorgine, Marcos Henrique Ferreira
dc.creatorOliveira, Ricardo Lourenço de
dc.creatorFarnesi, Luana Cristina
dc.creatorBruno, Rafaela Vieira
dc.date2018-07-12T11:52:39Z
dc.date2018-07-12T11:52:39Z
dc.date2018
dc.date.accessioned2023-09-27T00:08:50Z
dc.date.available2023-09-27T00:08:50Z
dc.identifierPADILHA, Karine Pedreira; et al. Zika infection decreases Aedes aegypti locomotor activity but does not influence egg production or viability. mem. Inst. Oswaldo Cruz, E-pub:19 jun. 2018.
dc.identifier0074-0276
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/27497
dc.identifier10.1590/0074-02760180290
dc.identifier1676-8060
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8897900
dc.descriptionZika has emerged as a new public health threat after the explosive epidemic in Brazil in 2015. It is an arboviroses transmitted mainly by Ae. aegypti mosquitoes. The knowledge of physiological, behavioral and biological features in virus-infected vectors may help the understanding of arbovirus transmission dynamics and elucidate their influence in vector capacity. Here, we aimed to investigate the effects of Zika virus (ZIKV) infection in the behavior of Ae. aegypti females by analyzing the locomotor activity, egg production and viability. Ae. aegypti females were orally infected with ZIKV through an artificial feeder to access egg production, egg viability and locomotor activity. For egg production and viability assays, females were kept in cages containing an artificial site for oviposition and eggs were counted. No significant difference in the number of eggs laid per females neither in their viability were found between ZIKV infected and non-infected females, regardless the tested pair of mosquito population and virus strain and the gonotrophic cycles. Locomotor activity assays were performed in activity monitors, an average of 5th, 6th and 7th days after infective feeding was calculated and a significant decrease in the locomotor activity in ZIKV infected females was observed. These results suggest that even when mosquitoes are infected with ZIKV, in places where there are many oviposition sites, they are able to maintain the dissemination of the vector population. Besides, the decreased locomotor activity does not seem to influence negatively in ZIKV transmission and may explain case clustering within households reported during Zika outbreaks such as in Rio de Janeiro 2015. High mosquito infestation index and abundant vector breeding sites may also influence this disease transmission.
dc.formatapplication/pdf
dc.languageeng
dc.publisherFundação Oswaldo Cruz. Instituto Oswaldo Cruz
dc.rightsopen access
dc.subjectZika virus
dc.subjectAedes Aegypti
dc.subjectLocomoção
dc.subjectviabilidade de ovo
dc.subjectprodução de ovos
dc.subjectZika virus
dc.subjectAedes aegypti
dc.subjectlocomotor activity
dc.subjectegg production
dc.subjectegg viability
dc.titleZika infection decreases Aedes aegypti locomotor activity but does not influence egg production or viability
dc.typeArticle


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