Katherine O'Brien, M.D., M.P.H.
Faculty, Division of Pediatric Infectious Diseases, Hopkins Children's
Associate Professor, Infectious Disease, Johns Hopkins Bloomberg School of Public Health.
Pneumococcal epidemiology and vaccine studies of pneumococcal disease, rotavirus, Haemophilus influenzae, respiratory syncytial virus, influenza and Helicobacter pylori. Infectious diseases in American Indian populations.
Katherine O'Brien earned her medical degree at McGill University in Montreal and her Masters in Public Health from The Johns Hopkins Bloomberg School of Public Health. After completing a residency in pediatrics and a fellowship in pediatric infectious diseases at Johns Hopkins, she joined the Bacterial Respiratory Diseases Branch at the Centers for Disease Control and Prevention as an epidemic intelligence officer. She returned to Johns Hopkins in 1998 to join its Center for American Indian Health, where she leads the center's Infectious Disease Group, conducting clinical trials of vaccines.
She is a recognized international expert in the areas of pneumococcal epidemiology, pneumococcal vaccine trials and impact studies, and surveillance for pneumococcal disease. She is also known as an expert in infectious diseases (including pneumonia and diarrheal diseases) in American Indian populations. She is a pediatric infectious disease physician at Hopkins Children's, an epidemiologist and an associate professor at The Johns Hopkins Bloomberg School of Public Health. She is the head of the Infectious Disease Group at the Center for American Indian Health and is the deputy director of research for PneumoADIP, an organization dedicated to accelerating global access to life-saving pneumococcal vaccines.