Cases top 1,297, driven by low immunization, summer travel and vaccine policy shifts under Robert F Kennedy Jr

The US is in the midst of the worst measles outbreak in 33 years, according to figures released this week. Driven by an outbreak in Texas, the US has now seen more measles cases in 2025 than in any year since 1992.

Experts said they expect the growth in measles cases to continue, spurred on in part by the summer travel season. The best way to prevent measles is to be vaccinated against the disease.

“Given this is summer and more people are traveling all over the US and abroad, this will increase the spread of measles,” pediatric infectious disease expert at Northwestern University, Dr Tina Tan, said in a statement.