Here’s a look at Zika virus, an illness spread through mosquito bites that can cause birth defects and other neurological defects. Zika virus is a flavivirus, part of the same family as yellow fever, ...

The federal government shutdown has brought respiratory virus surveillance to a halt at the national level, leaving local ...

We still don’t know how the pandemic started. Here's what we do know — and why it matters. Credit...Illustration by Jules Julien Supported by By David Quammen David Quammen is the author of ...

Zika virus is a flavivirus, part of the same family as yellow fever, West Nile, chikungunya and dengue fever. Zika is primarily transmitted through the bite of an infected female Aedes aegypti ...

1964 - First active case of Zika virus found in humans. While researchers had found antibodies in the blood of people in both Uganda and in Tanzania as far back as 1952, this is the first known case ...