Minnesota Helps Investigate Mysterious New Mexico Deaths

In May 2026, in the rural town of Mountainair, New Mexico, authorities arrived at a home with reports of a mysterious toxic exposure causing death. Over 20 first responders exhibited symptoms of vomiting, dizziness, and nausea soon after entering the residence. To assist in trying to identify the causative agent(s), the Center for Disease Control and Prevention (CDC)‘s Laboratory Response Network for Chemical Threats (LRN-C) activated the Minnesota Public Health Laboratory.

The Minnesota Public Health Laboratory is identified as a “Level 1 laboratory” by the CDC, which indicates:

• The ability to provide 24/7 assistance,
• Performing a high level of testing for hundreds of thousands of chemicals,
• The highest level of expertise, and,
• Using state-of-the-art equipment.

Blood and urine samples from the incident were sent to the Chemical Threats and Biomonitoring (CTB) Unit of the Minnesota Public Health Laboratory for analysis. The CTB unit analyzed the samples using multiple LRN-C and in-house laboratory developed methods to try and identify any causative agents. Analysis of the samples was prioritized, and results were communicated back to the responding and impacted partners within 12 hours of the samples’ arrival. The fast turn-around time and high level of analytical expertise of the CTB staff provided helpful context to this exposure event. The investigation in New Mexico is still ongoing and confidential at the time of this writing.

The Minnesota Public Health Laboratory responds and provides testing to about 20 in-state incidents each year. Events like this are the main reason why scientists at the Minnesota Public Health Laboratory continue to collaborate with emergency preparedness partners, hospitals, and hazmat teams to prepare for potentially dangerous mass-casualty chemical events.

The collaboration of the CDC and the Minnesota Public Health Laboratory assists in educating, preparing and protecting people for potential local threats. Laboratorians at the Minnesota Public Health Laboratory are experts in their fields and work each day to keep their communities, Minnesota, and the country safe.