Health officials in the Las Vegas area and Cincinnati have issued warnings about potential measles exposures in public locations linked to sick visitors from out of state, part of an ongoing rise in measles activity in the United States.

Meanwhile, two more cases have been reported in Chicago’s suburbs.

Las Vegas patient visited several area locations

The Southern Nevada Health District reported a confirmed infection in someone who visited Clark County between April 1 and April 6.

The person stayed at the MGM Grand hotel and spent time at several of the facility’s attractions. Health officials said the patient also visited locations throughout Las Vegas and Henderson.

“People who may have been exposed should review their immunization status and contact their health care providers if they are not fully immunized against measles or have not already had the disease,” the officials said.

Cincinnati’s second case involving a visitor

The Cincinnati Department of Health warned of potential measles exposures at a hotel and restaurant downtown after a visitor from Illinois tested positive for measles, the Cincinnati Enquirer reported, citing local health officials.

The case is the city’s second involving a sick visitor this year.

Source: Las Vegas, Cincinnati officials track measles exposures from infected visitors | CIDRAP