The Centers for Disease Control and Prevention is updating its advisory on measles after cases have expanded in the U.S.

CDC measles travel warning

Big picture view:

As of May 27, 2025, all travelers are recommended to be fully vaccinated for measles before going to any international destination .

What they're saying:

A CDC spokesperson told FOX Television Stations that, so far in 2025, it had received 62 reports of travelers who had measles while on an airplane.

Dig deeper:

The CDC was able to initiate contact investigations for 50 of those travelers, and found that measles appeared to have transmitted during air travel in one instance.

What is measles?

Measles is a respiratory disease caused by one of the world’s most contagious viruses. The virus is transmitted by dir

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