Apr 18, 2014 — A mumps outbreak in Ohio has ballooned to 234 cases, even though the community is well-protected against the virus. One scientist explains why this "vaccine failure" occurs.
Apr 17, 2014 — The two cases are the first in the country since 1999. The virus spread from neighboring Cameroon. When polio is on the move in Central Africa, the toll can be tragic.
Apr 11, 2014 — The stricken are most likely to die within 10 days. But those whose bodies produce antibodies may survive — and be sent home with a clean bill of health. That's happening now in Guinea.
Apr 11, 2014 — They have recovered from the deadly virus that is ravaging Guinea. They feel blessed by their good fortune. But family and friends are often afraid to welcome them back with open arms.
Apr 10, 2014 — Researchers ignited a debate three years ago when they changed a deadly flu virus so that it could spread between people. Only five mutations are needed to turn the virus into a pandemic threat.
Apr 9, 2014 — If you know Ciroc and Patron, you may well be listening to a lot of songs that name-check brand-name alcohol. And if you're a teenager, you may be binge drinking a lot more, researchers say.
Apr 9, 2014 — Dangerous and impolite: This little guy triggers food poisoning in people by biting off chunks of intestine, chewing on them for a bit ... and then spitting them out.
Apr 8, 2014 — In Guinea, an aggressive strain of the virus has claimed over 100 lives and invaded the capital city. But while it may take months to contain the outbreak, there already are survivors.
Apr 8, 2014 — The $31.3 billion given by wealthy nations, aid groups, charities, large foundations and others in 2013 reflects the shifting mix of donors backing international health projects, an analysis suggests.
Apr 7, 2014 — A young woman who didn't know she was infected with measles went to a Kings of Leon concert in Seattle. Public health investigators have reconstructed her movements to warn the public.