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.

Measles was declared eliminated from the United States 25 years ago. Now, the Centers for Disease Control reports major outbreaks of the virus happening across the country. This comes as vaccination rates in the country,

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.

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

The CDC says the best way to protect yourself against measles is with the measles, mumps, and rubella vaccine. According to the CDC, your child’s pediatrician and your primary doctor can provide the MMR vaccine. The vaccine may also be available at pharmacies, community health clinics, and health departments.

Measles cases in the U.S. reach a 33-year high with 1,300 infections across 38 states, mostly in unvaccinated individuals, prompting calls for vaccinations.

Johns Hopkins University data reflects the public health reversal in defeating the vaccine-preventable disease since measles was officially eliminated from the U.S. in 2000.