Measles Cases and Outbreaks

CDC updates this page monthly.

Measles cases in 2023

As of, November 2, 2023, a total of 41 measles cases were reported by 18 jurisdictions.

Measles cases in 2022

From January 1 to December 31, 2022, a total of 121 measles cases were reported by 6 jurisdictions. *

Measles cases in 2021

From January 1 to December 31, 2021, a total of 49 measles cases were reported by 5 jurisdictions. *

Measles cases in 2020

From January 1 to December 31, 2020, 13 individual cases of measles were confirmed in 8 jurisdictions.*

*Jurisdictions refer to any of the 50 states, New York City, and the District of Columbia.

Measles cases in 2019

A plane flying above the clouds

Did you know that measles can be found around the world?

Global Measles Outbreaks

Number of measles cases reported by year

2010-2023* (as of November 2, 2023)

*Case count is preliminary and subject to change.

Make sure you are vaccinated against measles before traveling internationally.

Measles outbreaks

In a given year, more measles cases can occur for any of the following reasons:

  • an increase in the number of travelers who get measles abroad and bring it into the U.S., and/or
  • further spread of measles in U.S. communities with pockets of unvaccinated people.

For specific information on measles cases in recent years please see the following reports: