Published 17 hours ago • loading... • Updated 13 hours ago
RiverStone Warns of Possible Measles Exposure at Billings Hospital
RiverStone Health said nonimmune visitors may get an MMR vaccine by 9:40 p.m. tonight, and the broader community risk remains very low.
RiverStone Health alerted the public to a potential measles exposure at Intermountain Health St. Vincent Regional Hospital in Billings after an individual tested positive for the virus on Sunday, November 8, 2026.
Anyone who used the hospital's front main lobby elevators between 9:45 p.m. and 10:30 p.m. on Sunday, November 8, is asked to contact RiverStone Health Public Health at 406.247.3305, the agency said.
Unvaccinated individuals could receive the MMR vaccine as post-exposure prophylaxis by 9:40 p.m. Wednesday, November 11, as "PEP can help prevent measles or reduce the severity of symptoms," RiverStone Health said.
Jon Forte, Yellowstone City-County Health Officer, praised the hospital for its "exceptional work" responding to the exposure, noting staff identified the concern quickly and worked with public health teams to limit risk.
Symptoms of measles can take up to 21 days to appear, according to RiverStone Health. The agency noted that "people who are vaccinated can still become infected with the disease after exposure, although this is uncommon.