(ABC 6 News) — New CDC data shows there have been almost 1300 confirmed cases of measles nationwide this year. That is the highest number in more than three decades, and it is a big spike from last year’s roughly 300 cases.

The US Centers for Disease Control and Prevention on Wednesday tallied the highest number of US measles cases since the disease was declared eliminated a quarter-century ago, just as a key Senate committee split the vote to advance President Donald Trump’s nominee to lead the public health agency.

More people have contracted measles in the US so far this year than in any year in the last three decades. New data from Atlanta-based Centers for Disease Control and Prevention shows 1,288 infections this year through 38 states,

The U.S. is having the worst measles outbreak in decades. Here’s what experts recommend you do to avoid getting sick.

A local medical office closed on Wednesday due to a possible measles exposure. A post on the Mid-Ohio Valley Health Department Facebook page Thursday morning said the Mid-Ohio Valley Medical Group “notified their patients that they would be closed as they assessed a potential measles case in their building.

Measles was considered eradicated in the United States in 2000. For the first time in 25 years, cases have reached a new high.

Cases are rising in the U.S., but the CDC says most people who bring measles into the U.S. are unvaccinated residents who traveled internationally.

Los Angeles, Orange, Riverside and San Bernardino counties have reported eight cases so far this year compared to 10 total in 2024.