In this photo taken Sept. 20, 2012, Allie Thomas, left, Catherine Moore, center, and Yvonne Johnson, right, listen during HIV class at the Edgewood Senior Apartment Building in Washingt

 

              In this photo taken Sept. 20, 2012, Allie Thomas, left, Catherine Moore, center, and Yvonne Johnson, right, listen during HIV class at the Edgewood Senior Apartment Building in Washingt
In this photo taken Sept. 20, 2012, Allie Thomas, left, Catherine Moore, center, and Yvonne Johnson, right, listen during HIV class at the Edgewood Senior Apartment Building in Washington. Washington seniors are used to talking about a host of health issues. Alzheimer's. Diabetes. High cholesterol. Now officials in the nation's capital are asking seniors to think about a different disease: HIV. (AP Photo/Ann Heisenfelt)