The U.S. has recorded more than 1,200 measles cases this year, the highest the country has witnessed in 33 years, according to Johns Hopkins University. Read more here.

People who attended a prenatal clinic in Fort St. John, B.C., have been told they may have been exposed to measles.

Before immunization was widely available in the United States, there were between three and four million cases of measles each year. After immunization ...

Measles cases have been reported by 39 states and jurisdictions in the United States, the worst outbreak since 2019.