Officials report a surge in measles, urging vaccinations and caution, with 1,227 US cases and local Arizona alerts.

U.S. measles cases hit 1,277—the worst outbreak since the disease was declared eliminated in 2000, surpassing 2019's peak ...

Health officials in Navajo County in northern Arizona say they've confirmed four measles cases, which are the first cases of the highly contagious respiratory virus in Arizona in 2025. The ...

Measles is a highly contagious viral illness spread through the air by respiratory droplets produced from coughing or ...

Though an outbreak in Ohio appears to have subsided since the spring, outbreaks of measles are still popping up all over the country. The summer break does not seem to have slowed the spread of this ...

The new COVID-19 variant, called Nimbus, has similar symptoms and recovery to the Omicron strain. It hasn't been detected in ...

Kentucky has its first measles outbreak of 2025, as the U.S. case count sits just short of a 30-year high. There have been ...

Other U.S. states with active outbreaks — which the CDC defines as three or more related cases — include Arizona, Colorado, ...

Measles is caused by a highly contagious virus that’s airborne. It is preventable through vaccines and has been considered ...

The case was confirmed in an unvaccinated adult who recently returned from international travel lasting four to five weeks.

There have also been 34 confirmed measles cases not affiliated with the outbreak, including four in Tarrant County, three in ...