What makes Zika so hard to control is the mosquito that carries it. After many centuries of living in proximity to people, Aedes aegypti mosquitoes have adapted. They hide in closets and under tables and in foliage — places where spraying often doesn’t reach. Especially in an area with high-rise buildings, like Miami Beach, aerial spraying is not considered effective for A. aegypti. For that reason, federal and state health officials initially ruled it out. But as Zika cases multiplied, they decided to try a targeted spraying campaign. Philip Stoddard is the mayor of South Miami. He’s also a biologist at Florida International University. He used the county’s data to do a statistical analysis of the aerial Naled spraying.
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