Entitled, “Investigating Unknown Chronic Pulmonary Disease among HIV-infected Adolescents”, this image was created by CDC Medical Officer, Daniel A. Singer, MD, MPH. Here, Spencer Lloyd, MD, coaches an HIV-infected child during a spirometry test. This test of breathing and lung capacity, was part of an Epi-AID investigation of unknown chronic pulmonary disease among HIV-infected adolescents in Malawi and Zimbabwe. The study involves several branches in Atlanta, two CDC field offices, two Ministries of Health, and nearly a dozen other field partners. This photo earned Dr. Singer a tie for the Second Place award in the 2014 CDC Connects Annual Public Health in Action Photo Contest, in the category of “International Programs”.