Kristen Pogreba-Brown (IMAGE) University of Arizona Health Sciences Caption Epidemiologist Kristen Pogreba-Brown, PhD, MPH leads the the Arizona CoVHORT study, a longitudinal research study of COVID-19 and post-COVID conditions. Credit UArizona Health Sciences Usage Restrictions Credit UArizona Health Sciences License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.