One case of measles reported in Ransom County

Wednesday, April 1, 2026 - 01:00 am

North Dakota Health and Human Services (HHS) is reporting one confirmed measles case in Ransom County. This is the first case reported in Ransom County.

The individual likely acquired the infection within the state. HHS is continuing its investigation to determine the source of exposure, as the individual reported no recent out-of-state or international travel. The case is not linked to the outbreak in Pembina County.

North Dakota has a total of 27 confirmed cases of measles to date in 2026, and five individuals have been hospitalized. The United States has confirmed 1,575 cases in 2026. Manitoba, Canada is currently reporting an outbreak of measles. Globally, increased measles cases are being reported in many countries.

Who is at risk?

Measles is a highly contagious viral illness that can be serious, particularly for young children and individuals with compromised immune systems. Individuals who are unvaccinated are most at risk. These individuals are encouraged to talk to a trusted health care provider about vaccination.

Measles spreads easily through the air and can remain in a room and on surfaces for up to two hours after a person who is contagious leaves that space. Individuals with measles are contagious for several days before and after symptoms appear. Symptoms often include fever, cough, runny nose and eye irritation, followed by a widespread rash.

Individuals who may have been exposed to measles are encouraged to watch for symptoms. If symptoms develop, contact a health care provider for guidance and testing. Those who think they have measles should call first before seeking health care to avoid exposing others to measles. Individuals who are not vaccinated and are exposed to measles should stay home and avoid public settings for 21 days after exposure.

Reducing risk after exposure

Unvaccinated individuals who are exposed to measles should talk to their health care provider about options to reduce the risk of illness or severe outcomes. The MMR vaccine may be recommended to be given within 72 hours of exposure. Immune globulin may be recommended to be given within six days of exposure for high-risk individuals, including infants, pregnant individuals and those who are immuno-compromised.

Measles vaccine recommendations

The MMR vaccine remains the most effective way to prevent measles. One dose of MMR vaccine is about 93% effective at preventing measles; two doses are about 97% effective.

Because the new case is not linked to other cases or travel, there is concern about potential community transmission. As a precaution, HHS recommends that individuals living in or traveling to Ransom County ensure they are vaccinated against measles.

HHS recommends:

• Infants ages 6 through 11 months who reside in or are traveling to Ransom County receive an early dose of MMR vaccine. Infants younger than 6 months are not eligible for vaccination.
• Individuals 12 months and older receive their first MMR dose if they have not already, followed by a second dose at least 28 days later.
• Individuals who have received two doses of MMR after 12 months of age are considered fully vaccinated.
• Adults born before 1957 are generally presumed immune due to natural exposure. Immunization records can be reviewed at hhs.nd.gov/IRR or by contacting a health care provider. Vaccines are available through local public health units and most private clinics. The federally funded Vaccines for Children (VFC) program provides vaccines at no cost for eligible families.

For the most up-to-date information on measles in North Dakota, exposure locations and prevention guidance, visit hhs.nd.gov/measles.