DCist reported yesterday that several locations in the metro area were potential exposure sites for measles (Rubeola) in early April, including two sites in Southwest - the Potbelly's on 3rd Street on April 4th and Safeway on April 8th & 10th. According to WebMD:
Measles is a very contagious infection that causes a rash all over your body. It is also called rubeola or red measles. It is very rare in the United States because most children get the vaccine as part of their regular childhood shots. The first symptoms of measles are like a bad cold-a high fever, a runny nose, sneezing, a sore throat, and a hacking cough. The lymph nodes in your neck may swell. You also may feel very tired and have diarrhea and red, sore eyes. As these symptoms start to go away, you will get red spots inside your mouth, followed by a rash all over your body.
If you think you may have been exposed, call 311 if you are a D.C. resident, or the D.C. Department of Health at (202) 737-4404.