Study Co-Author (IMAGE) National Jewish Health Caption Irina Petrache, MD, co-led a study at National Jewish Health to better understand why some people continue to suffer life-altering symptoms of COVID-19 months after contracting the virus. Through extensive testing, researchers found that the virus actually alters cell function in these patients, a discovery they hope will lead to treatments. Credit National Jewish Health Usage Restrictions All multimedia is available for free and unrestricted media use with courtesy to National Jewish Health. 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.