During a Cabinet meeting last week, US Health and Human Services Secretary Robert F. Kennedy Jr. downplayed what is now the ...

Here's what to know about whooping cough amid the growing cases.

The number of measles cases reported in the U.S. in a single week has topped 90 for the first time since a record wave in ...

Canada has reported more than 730 cases this year, making this one of the worst measles outbreaks in the country since it declared the virus “eliminated” in 1998. Mexico has seen at least 360 measles ...

Measles cases have surpassed 650 in an ongoing multistate outbreak, but federal funding cuts could threaten the response.

Before the vaccine, the virus spread in a world very different from today’s.

Measles would normally be expected to have a fatality rate of about one to three deaths out of every 1,000 children infected, the CDC says, so the number of deaths this year suggests there may be far ...

Doctors, researchers and public health experts warn that the measles outbreak, which has grown to more than 600 cases, may ...

As of Friday, the CDC reported 79 hospitalizations, including 45 patients who were under 5.  Most measles cases, 97%, ...