The highly contagious virus can be spread for up to four days before the telltale rash occurs and 9 of 10 people will get it.

Measles cases in the U.S. have been rare in recent decades, thanks to a strong childhood vaccination program. But a few cases inevitably pop up each year as travelers bring the virus in from other ...

As measles cases surge to record levels in the U.S., Department of Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. has downplayed the effectiveness of the long-used vaccine and instead ...

The South Carolina Department of Public Health has reported 15 new measles cases, bringing the total to 129, with most cases ...

Summer travel raises fears that the highly infectious virus will spread. Here’s how to protect yourself and your family. By Perri Klass, M.D. Dr. Perri Klass is a professor of journalism and ...

An outbreak of the highly contagious measles virus in Woodford County has now spread to neighboring Fayette County, state public health officials announced Monday. In a news release from Kentucky’s ...

The outbreak shows no signs of slowing, likely because of the affected area’s “lower-than-hoped-for vaccination coverage,” a ...

The return of measles to the U.S. may have many people wondering whether they should get a measles vaccine booster. Pictured here is an information booth for measles vaccinations offered by Harris ...

The Wisconsin DHS announced the state's first confirmed measles cases of the year. Nine cases of measles were confirmed in Oconto County. The DHS said it can cause health complications and can ...