PIERRE, S.D.(SD Searchlight)- South Dakota Department of Health officials have confirmed the state’s 11th measles case of 2026.

The case involves a child younger than 18 in Edmunds County, department spokeswoman Tia Kafka said. The patient was unvaccinated or their vaccination status is unknown, and the source of exposure is unknown.

The department notified medical providers last week to be alert for measles symptoms in Brown, Campbell, Edmunds, Faulk, McPherson, Potter, Spink and Walworth counties.

The department did not issue a press release about the case because the patient was not known to have visited public locations while infectious, Kafka said.

The last cases reported before Thursday were in May, according to the department’s measles dashboard.

So far this year, six measles cases have been confirmed in Grant County, one in Brown and three in Brookings. This is the first case in Edmunds County.

Two of the patients who contracted measles in May were hospitalized. They’ve since recovered, Kafka said.

Ten of the 11 cases involved patients who were unvaccinated or unaware of their vaccination status. Seven of the cases have been among children. Six were exposed through international travel, four have an unknown source, and one was linked to close contact with a known source.