Other U.S. states with active outbreaks — which the CDC defines as three or more related cases — include Arizona, Colorado, ...

Kentucky has its first measles outbreak of 2025, as the U.S. case count sits just short of a 30-year high. There have been ...

Kansas added three more cases this week for a total of 83 across 11 counties in the southwestern part of the state.

Measles cases in the United States are approaching a troubling new milestone, with federal health officials reporting 1,267 confirmed infections across 38 states so far this year.

The Fourth of July holiday, also known as Independence Day, celebrates the Second Continental Congress’ unanimous adoption of the Declaration of Independence on July 4, 1776. A year later, ...

Since the emergence of the Zika virus epidemic in 2014 and the associated novel sequalae that emerged, much has been learned about the effects of antenatal exposure to Zika virus. Zika virus in ...

The U.S. is about to break a record for the number of reported measles cases in a year since the infection was considered ...