Five New Measles Cases Reported in Helena

Health officials say exposure was limited to St. Peter's Emergency Department

Mar. 31, 2026 at 9:58pm

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Lewis and Clark Public Health reported five new measles cases in Lewis and Clark County, Montana. The exposure was limited to the St. Peter's Emergency Department from March 29 at 11:20 p.m. to 3 a.m. on March 30. Health officials noted the cases are not connected to any daycares or schools in the area.

Why it matters

Measles outbreaks can be serious public health concerns, especially in areas with lower vaccination rates. This incident highlights the importance of vaccination and quick response from health authorities to limit the spread of infectious diseases.

The details

The first symptoms of measles usually appear 7-14 days after exposure and include fever, cough, runny nose, red watery eyes, and white spots in the mouth. A red rash typically begins 2-3 days after the first symptoms. Health officials are urging anyone who may have been exposed at the emergency room to contact their healthcare provider immediately.

  • The exposure was limited to the St. Peter's Emergency Department from March 29 at 11:20 p.m. to 3 a.m. on March 30.

The players

Lewis and Clark Public Health

The local public health department that reported the new measles cases.

Shelly Maag

The LCPH Public Health Nurse Supervisor who provided updates on the situation.

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What they’re saying

“Our message remains the same as it was last time – there is no reason to panic. Most of our population is fully immunized against measles. Though it's always important for residents to stay informed and prepared.”

— Shelly Maag, LCPH Public Health Nurse Supervisor

“If you believe you or your family were exposed to measles at the emergency room on Sunday night/Monday morning, and you are unsure of your immunity or vaccination status, please contact your healthcare provider immediately to discuss your options for preventive treatment.”

— Shelly Maag, LCPH Public Health Nurse Supervisor

What’s next

Health officials are urging anyone who may have been exposed at the St. Peter's Emergency Department to contact their healthcare provider immediately.

The takeaway

This measles outbreak in Helena highlights the importance of vaccination and quick public health response to limit the spread of infectious diseases, especially in areas with high emergency room traffic.