Tennessee has four confirmed measles cases, and health care experts know with certainty that means more are on the way. Measles was declared eliminated from the United States in 2020, but it is surging again as parents decline to vaccinate their children.

The Tennessee Department of Health confirmed three additional measles cases in Middle Tennessee on Tuesday, less than two weeks after the region reported its first case. One of the new cases confirmed Tuesday is related to Tennessee's first confirmed case on March 21. No additional details are available about Tennessee’s positive cases.

As measles spreads across the U.S., a few fully vaccinated people have contracted rare breakthrough cases. Here's what to know and why vaccination is still important.

KENT COUNTY, Mich. – Michigan has confirmed its second measles case of 2025 in an adult in Kent County. The health department said the infected adult had recently traveled abroad before returning to the U.S. and traveling between Michigan and New Jersey.

As the state continues to track cases of measles in Oklahoma, they’re mindful of exposure to the virus as well.

The number of measles cases is rising across Japan, but many on social media are spreading misinformation that the disease is not serious. Ah･･･

A health unit near London at the epicentre of a provincewide measles outbreak continues to see an increase in cases of the highly infectious disease. Here is the latest on the outbreak that has spread throughout Southwestern Ontario, including Middlesex-London.

Michigan doctors and health officials answer questions about the measles vaccine as Michigan reports its second confirmed case of 2025.