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Articles on disease vectors

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Aedes aegypti, found across much of the U.S., spread Zika, dengue, chikungunya and other viruses. Mailson Pignata/iStock via Getty Images

Female mosquitoes rely on one another to choose the best breeding sites − and with the arrival of spring, they’re already on the hunt

Female mosquitoes don’t want to lay their eggs alone, but they don’t want sites that are too crowded either. Understanding what guides their choice could inform new control strategies.
Black-legged ticks carry Lyme disease, which continues to spread widely across the United States. CDC/Michael Levin

Tick bites: Every year is a bad tick year

How bad are ticks this year? An expert explains why tick-borne diseases are on the rise.

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