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Measles

Last updated Dec. 22, 2023.

Measles is a highly contagious and acute respiratory viral disease. Measles is caused by a virus that lives in the nose and throat mucus of an infected person and spreads easily through breathing, coughing, and sneezing. Symptoms include rash, cough, runny nose, eye irritation, and fever. 

Current U.S. outbreak information

Measles is rare in Colorado, but cases and outbreaks still occur every year in the United States. Outbreaks can occur when people at risk for measles get sick and the virus spreads to communities with pockets of unvaccinated people. You can protect your loved ones, yourself, and the community against measles by making sure you are up to date on your measles, mumps, and rubella (MMR) vaccine.

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Health care professionals

Public health professionals

Data

Measles cases in Colorado

2014-2023

2014

1

2015

1

2016

2

2017

0

2018

0

2019

1

2020

0

2021

0

2022

0

2023

1