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The Latest

Hiking in the woods, bothered by mosquitoes.

What's Making Your Zika Risk Spike?

What does climate change have to do with the spread of disease-carrying mosquitoes? Quite a bit according to results of a study in Nature Microbiology.

Mosquito on man's finger.

How Mosquitoes' Saliva Can Worsen Diseases They Transmit

Substances in mosquito saliva trigger immune system responses that can increase the severity of the diseases they transmit, like Zika virus, West Nile, malaria, and dengue fever.

Black legged tick on a leaf.

What a Tick Expert Wants You to Know

We spoke with an epidemiologist with the Centers for Disease Control and Prevention about Lyme disease, other tickborne illnesses, and tick bites. Here’s how to stay safe.