Measles exposure alert issued for Rapid City visitors

Any person who visited specific locations in Rapid City during certain times may have been exposed to measles, according to a recent public health notice. Visitors are advised to monitor themselves for symptoms of measles for 21 days following their exposure date. Those not immune should consult their healthcare provider about protective measures such as vaccination or immune globulin.

The locations and times include Sam’s Club at 925 Eglin St on June 1, 2025, from 12 pm to 6 pm MT, and Dakota Premier Medical Clinic at 2006 Mt Rushmore Rd on June 2, 2025, from 11:15 am to 3:45 pm MT.

Measles symptoms manifest in two stages. Initially, individuals might experience a runny nose, cough, slight fever, reddened eyes sensitive to light, with the fever rising daily. The second stage involves a temperature between 103-105°F and a red blotchy rash starting on the face before spreading downwards. This stage occurs between the third and seventh day of symptoms.

“We are sharing this information to help individuals who may have been exposed take steps to protect their health,” stated Dr. Joshua Clayton, state epidemiologist. “Any South Dakotan who lack immunity from vaccination or past infection can get the MMR vaccine to prevent measles infection and its complications.”

The measles vaccine is highly effective in preventing infection and associated risks. People considered immune include those born before 1957; those who received one dose of the MMR vaccine as children aged twelve months to pre-school age; those with two doses as school-aged children or adults at higher risk; those with lab-confirmed presence of antibodies; and those with previous lab-confirmed infections.

Typically administered at ages twelve to fifteen months, followed by a second dose between four and six years old, the MMR vaccine is safe and effective in producing lifelong immunity. For international travel with children starting at six months old, early vaccination is available.

Additional information about measles can be accessed through fact sheets, FAQs, and webinars for healthcare providers on the Department of Health website.

The Department of Health's mission focuses on protecting and improving health across South Dakota by promoting wellness and ensuring access to quality healthcare.