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Sustainable Development Goals
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- IOC - Artigos de Periódicos [12968]
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UNLIKE ZIKA, CHIKUNGUNYA VIRUS INTERFERES IN THE VIABILITY OF AEDES AEGYPTI EGGS, REGARDLESS OF FEMALES’ AGE
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Abstract
Chikungunya and Zika are arboviruses transmitted by the mosquito Aedes aegypti. Mosquito fecundity
and egg viability are important parameters of vectorial capacity. Here we aim to understand,
comparatively, the efects of Chikungunya virus (CHIKV) and Zika virus (ZIKV) infections on the
fecundity and fertility of young and old Aedes aegypti females. Using artifcial infection blood feeding
experiments we observed that both CHIKV and ZIKV do not alter the number of eggs laid when
compared to uninfected females, although the egg fertility signifcantly decreases in both young and
old CHIKV-infected females. There is an upward trend of null females (infertile females) from 2.1% in
young to 6.8% in old ZIKV-infected females. Together, our data revealed that CHIKV and ZIKV afects
diferently Ae. aegypti physiology, that may be related to diferent viral spread in nature.
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