Infectious Disease

Scientists have evidence that SARS-CoV-2 is circulating in white-tailed deer in the U.S. They say the findings could essentially dash any hopes of eliminating the virus in the U.S. — and the world.

Years after agreeing to take part in research, families of children with congenital Zika syndrome are feeling abandoned.

Scientists caution that as the planet warms, more Americans could be exposed to disfiguring varieties of the Leishmania parasite. Overtreatment can be a problem, too, experts warn.

Dr. Rochelle Walensky is an infectious disease expert and teaches at Harvard Medical School. She will replace Robert Redfield, the current director of the Centers for Disease Control and Prevention.

Scientists are racing to develop a vaccine that proves "safe and effective." It may not prevent infection in everyone who gets it, but it still could eventually stop the pandemic. Here's how.

There's a lot that scientists don't know about how viral infections can interact. But researchers are eager to figure out how coronavirus infections might affect flu infections and vice versa.

CDC chief Robert Redfield says that earlier testing for the coronavirus would have been like "looking for a needle in a haystack." But other health experts dispute his assertion.

The children and preteens of the U.S. polio epidemic of the 1940s and '50s are once again in a high-risk group, this time for coronavirus. They recall their experiences and the parallels to today.