Of those infected across the U.S., 97% of cases came from those who are unvaccinated or whose vaccination status is unknown.

Measles is caused by a highly contagious virus that’s airborne and spreads easily when an infected person breathes, sneezes ...

The number of measles cases in the U.S. has risen to 884, according to new Centers for Disease Control and Prevention data ...

The US has now hit nearly 900 measles cases across 30 states this year – a more than threefold increase from the total number ...

Measles could become endemic in the United States if routine childhood vaccination rates continue to decline, with up to 51 ...

A fifth case of measles is now confirmed in Colorado. It's the third case in Denver. An adult got measles after traveling to ...

Republicans are far more skeptical of vaccines and twice as likely as Democrats to believe the measles shot is worse than the ...

Measles, once virtually wiped out in the United States, could become commonplace again if declining vaccination rates ...

Measles, which was 'eliminated' in the U.S. in 2000, could be endemic again within 25 years if current vaccination rates hold ...

Measles could be well positioned for a comeback in the United States in a very short period of time. If immunization rates ...

“This is the largest outbreak in the U.S. since measles elimination was declared in 2000,” Dr. Dan Filardo, who leads the U.S ...

The United States is at a tipping point for the return of endemic measles a quarter century after the disease was declared ...