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

As health secretary, Mr. Kennedy has failed to help control the measles outbreak in and around Texas, which has ballooned to ...

Michigan officials confirmed a new measles outbreak Thursday near Grand Rapids, bringing the U.S. to seven states with active outbreaks of the vaccine-preventable disease. Last week, U.S. measles ...

Michigan officials confirmed a new measles outbreak Thursday near Grand Rapids, bringing the U.S. to eight states with active outbreaks of the vaccine-preventable disease. Earlier this week, ...