McLEAN, Va. (WNEW/AP) — Health officials in northern Virginia have confirmed a second case of measles in the area.

Wednesday’s announcement comes two weeks after officials confirmed the initial case in Loudoun and Fairfax counties. The second case occurred in a person who was in close contact with the first case.

Health officials say that, in an abundance of caution, they are seeking to identify people who may have been exposed to the virus. They have provided a detailed list of locations in northern Virginia, the District of Columbia and Maryland, where exposures could have occurred.

The exposures occurred between May 11 and May 15 at various locations in Fairfax, Loudoun and Arlington counties in Virginia; Montgomery County in Maryland; and Washington, D.C.

List of potential exposure sites

Based on the dates of exposure, anyone infected with the measles virus may develop symptoms as late as June 5, health officials say.

Measles is easily prevented by a vaccine that most people receive in childhood. The disease starts with a fever and watery, red eyes and later causes a rash that begins on the face and spreads over the body.

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