While most people's symptoms improve, 1 in 5 unvaccinated people who catch measles will be hospitalized, 1 out of every 1,000 ...

If you've already been vaccinated for measles, do you need to get a booster now that it's spreading in the US?

Robert F. Kennedy Jr., a longtime vaccine skeptic, seemingly reversed course and touted benefits of MMR vaccine amid deadly ...

The health secretary is emphasizing the importance of vaccines after previously calling the measles outbreak in Texas “not ...

The measles outbreak in Texas has quickly grown to 146 cases. One child has died. NBC News answers readers' questions about ...

As the measles outbreak continues to spread in Texas, there have been two confirmed cases in New York City. The city Department of Health has not said exactly where the cases were reported or if they ...

Adults born before 1957 are assumed to have natural immunity because they were likely exposed to measles before the vaccine ...

For those who were vaccinated for measles many decades ago, there’s a chance the protection has worn off by now. Here's how ...

Measles is rarely seen in the United States, but Americans are growing more concerned about the preventable virus as cases ...

Vaccines not only protect individual children from measles, but also contribute to community immunity, protecting those who ...

Robert F. Kennedy Jr., the H.H.S. secretary, claimed that doctors had successfully treated children with unconventional ...