Freya, a springer spaniel, is in training to detect malaria parasites in sock samples taken from children in Gambia. Two canine cohorts were used in a study on malaria detection. Durham University/Medical Detection Dogs/London School of Hygiene & Tropical Medicine hide caption
A nurse vaccinates a baby against rotavirus, a deadly form of diarrhea. Hector Retamal/AFP/Getty Images hide caption
Surgeons perform a cesarean section. A new report raises concerns about rising rates of this procedure around the world, from Brazil to China. Getty Images hide caption
Dr. Paul Farmer examines a tuberculosis patient in Monrovia, Liberia. Katherine Kralievits / PIH hide caption
Jean Couch, 75, perches on the edge of a chair at her home in Los Altos Hills, Calif. She teaches people the art of sitting in chairs without back pain. Erin Brethauer for NPR hide caption
Viruses thrive in the security lines at airports, according to several studies. Chip Somodevilla/Getty Images hide caption
Rosy does dishes — voluntarily. Getting the 2-year-old involved in chores did lead to the kitchen being flooded and dishes being broken. But now she is still eager to help. Michaeleen Doucleff/NPR hide caption
bad sitting posture Lily Padula for NPR hide caption
A colored scanning electron micrograph of a female Anopheles mosquito, a vector for the malaria parasite Plasmodium vivax. Dennis Kunkel/Science Source hide caption
A mother holds her newborn twins at a Sri Krishna Medical College and Hospital, a public health facility in India. Paula Bronstein/The Verbatim Agency/Getty Images hide caption
Gelmy, 9, and sister Alexa, 4, climbing trees in the backyard of their family home in the Yucatan Peninsula. Adriana Zehbrauskas for NPR hide caption
