RELEASE: Health Department calls end of measles outbreak
FOR IMMEDIATE RELEASE
September 26, 2025
New Mexico Health Department calls end of measles outbreak
SANTA FE – The New Mexico Department of Health has declared the state’s measles outbreak, which started on February 14, to be over.
T he last cases were reported in Santa Fe County on August 14.
Public health authorities consider a measles outbreak over when 42 days pass without new cases, a timeframe that represents twice the virus’s maximum incubation period.
“We are thankful to the thousands of New Mexicans who received their measles, mumps, and rubella (MMR) vaccine,” said Dr. Chad Smelser , New Mexico Department of Health (NMDOH) acting state epidemiologist. “Fully vaccinated people and those who got caught up with their vaccines during this outbreak prevented it from spreading further.”
One hundred cases of measles were identified during this outbreak, which was New Mexico’s first measles outbreak since 1996, and its largest in decades. The outbreak began in Lea County, likely from exposures to an outbreak in neighboring West Texas.
New Mexicans stepped up to protect their communities, with over 56,000 people receiving an MMR vaccine since Feb. 1. The MMR vaccine is still widely available in New Mexico for anyone who wants it.
Measles is extremely contagious. It can lead to dangerous complications like pneumonia and encephalitis and leaves people more vulnerable to other infections. However, two doses of the MMR vaccine are 97% effective at preventing the disease.
Measles outbreaks are continuing in the United States and around the world. People should check their MMR vaccination status, especially if they are considering travel outside New Mexico.
If you’re experiencing fever and rash, contact your doctor or emergency department first to tell them you are worried about measles so they can plan for your visit. You can also call the NMDOH Helpline at 1-833-SWNURSE (1-833-796-8773). The Helpline is staffed by nurses who can provide guidance in English and Spanish related to measles and vaccination questions.
For more information visit our website http://measles.doh.nm.gov/ .
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NMDOH
Robert Nott , Communications Director | robert.nott@doh.nm.gov | (505) 479-0147
The New Mexico Department of Health (NMDOH) works to promote health and wellness, improve health outcomes, and deliver services to all New Mexicans. As New Mexico’s largest state agency, NMDOH offers public health services in all 33 counties and collaborates with 24 Native American Tribes, Pueblos and Nations.
New Mexico Department of Health | 1190 S St Francis Dr | Santa Fe, NM 87505 US
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