Someone who attended the recent Shakira concert in New Jersey may have been exposed to this wildly contagious disease.

A measles exposure could happen whenever, wherever. Thousands of concertgoers may have come in contact with the virus at a Shakira show at the MetLife Stadium last Thursday, according to an alert from the New Jersey Department of Health this week.

New Jersey health officials issued a warning about a potential measles exposure during the Shakira concert at MetLife Stadium.