The FDA and CDC recommended a pause for Ixchiq, a chikungunya vaccine, following reports of adverse events in recipients 60 and older, including death.

Measles cases surge in the U.S., with outbreaks across 31 jurisdictions. Experts warn of the virus's contagiousness and call ...

The U.S. government is advising that international travelers age 60 and older not get a chikungunya vaccine as it ...

This county in the U.S. has one of the highest dementia rates in the country, but why are so many of its residents falling ...

According to the Centers for Disease Control and Prevention (CDC), there are presently 14 measles outbreaks (defined as three ...

Over 1,000 cases of the deadly virus have taken hold in 31 U.S. states and it is now surging in Canada and Mexico, spurred by ...

North America has two other ongoing outbreaks, all of which are the same measles strain. One outbreak in Ontario, Canada, has ...

Foods contaminated with the bacteria can make people sick. Symptoms can be mild and include fever, muscle aches, nausea, ...

To stop the spread of a flesh-eating parasite, U.S. officials have halted all imports of live cattle, horses and bison from ...

Katherine Wells, the public health director in Lubbock, Texas, describes her fight to stop the largest measles outbreak since ...

One school district is requiring unvaxxed schoolchildren exposed to the measles virus to quarantine for 21 days. Meanwhile, for only the second time in 30 years, the number of measles cases nationwide ...