DEMING — The New Mexico Department of Health has confirmed four measles cases in southern New Mexico detention facilities, bringing the state’s total number of cases in 2026 to five.
According to the Department of Health, two of the confirmed cases involve inmates housed at the Luna County Detention Center. One case has been confirmed at the Doña Ana County Detention Center, and another at the Hidalgo County Detention Center. Earlier this week, health officials reported that a federal inmate at the Hidalgo County facility tested positive for measles.
State health officials say there are currently no identified public exposure locations related to these cases.
The Department of Health is working directly with detention center administrators to ensure appropriate quarantine, isolation, testing, and vaccination protocols are in place to prevent further spread of the virus within the facilities.
Dr. Chad Smelser, deputy state epidemiologist for the New Mexico Department of Health, emphasized the seriousness of the situation.
“These new infections serve as a reminder that measles can spread rapidly and that the best prevention against this virus is the measles, mumps and rubella shot,” Smelser said.
Health officials note that measles symptoms typically develop between seven and 21 days after exposure. Early symptoms often include fever, cough, runny nose, and red eyes. A red, spotted rash usually appears three to five days after symptoms begin, typically starting on the head or face before spreading downward to the rest of the body.
Individuals infected with measles are considered contagious from four days before the rash appears until four days after it develops.
The Department of Health reports that New Mexico experienced 100 measles cases during a 2025 outbreak, highlighting the importance of vaccination, particularly in congregate settings such as correctional facilities.
The measles, mumps and rubella (MMR) vaccine remains the most effective protection against the virus. Health officials encourage anyone who is not fully vaccinated to consult their healthcare provider.
Residents who believe they may have been exposed to measles or who are experiencing symptoms are advised to call a doctor or emergency department before arriving in person to reduce the risk of exposing others.
Questions about measles or vaccination can be directed to the New Mexico Department of Health helpline at 1-833-796-8773.