The North Dakota Department of Health and Human Services (HHS) has confirmed a case of measles in Williams County, marking the first reported instance in the state for 2026. The individual diagnosed with measles was unvaccinated and contracted the illness while outside North Dakota.
According to HHS, those who may have been exposed to the virus have been identified and notified. Officials stated that there are no public locations requiring notification for community exposure at this time.
In 2025, North Dakota recorded 36 cases of measles. These were the first confirmed cases since 2011.
“This case serves as a reminder to North Dakotans that measles continues to circulate worldwide and in the United States,” said Molly Howell, director of the HHS Disease Control and Forensic Pathology Section. “The measles, mumps and rubella (MMR) vaccine is 97% effective after two doses. People who are vaccinated and exposed to measles are unlikely to develop the disease. MMR vaccination is critical to preventing the spread of measles in the community, and anyone who is eligible and not yet vaccinated is encouraged to contact a trusted health care provider.”
HHS indicated that because most residents are vaccinated against measles, there is currently low risk for widespread transmission among the general public.
The recommended schedule for MMR vaccination begins at 12-15 months old with a second dose between ages four and six. Children who receive both doses are considered fully vaccinated. Adults born before 1957 typically have natural immunity; however, those born later should ensure they have received at least one documented dose of MMR vaccine.
Anyone uncertain about their immunization status should consult their health care provider or review records through hhs.nd.gov/IRR or by contacting their provider directly.
Measles is recognized as a highly contagious viral infection that can lead to serious complications—especially in young children or people with weakened immune systems. Common symptoms include fever, cough, runny nose, eye irritation, followed by a rash across much of the body.
The virus spreads easily through airborne particles and can linger on surfaces or in rooms for up to two hours after an infected person leaves. Individuals remain contagious several days before and after symptoms emerge.
Those suspecting they might have measles should call ahead before visiting medical facilities to reduce potential spread within healthcare settings. While there is no specific treatment for measles itself, antibiotics may be prescribed if secondary bacterial infections occur.
MMR vaccines are widely available at clinics throughout North Dakota. Families facing financial barriers can access free vaccinations through participating providers under the federally funded Vaccines for Children Program.
