The measles outbreak has spread to a fourth Minnesota county, with 60 cases now confirmed in the state.
The Minnesota Department of Health announced Le Sueur County, in southeast Minnesota, is the latest to get measles infections. Two cases there were confirmed by health officials.
Most of the cases (51) have been confirmed in Hennepin County, with four in Crow Wing County, and three in Ramsey County.
In both Le Sueur County instances, the disease has been contracted by children under the age of 5 who have not been immunized with the MMR vaccination. According to the New Prague Times, the children have not required any hospital treatment and are recovering at home.
Le Sueur County Public Health director Cindy Shaughnessy told the Star Tribune: "The big message is to vaccinate, just can't say that enough."
Public health officials in the county have been urging schools to contact parents of unvaccinated children to encourage them to get measles shots.
Of the 58 cases in Minnesota, 55 of them are children and 49 are Somali Minnesotans. All but three people infected with measles in the state are unvaccinated.
You can find the Minnesota Department of Health guidelines on dealing with measles here.
Any unvaccinated people who are exposed to the disease are being told to stay at home for up to 21 days. Children over the age of 12 months should get their first and second MMR vaccines (though there needs to be a 28-day gap between shots).