RSV-infected human respiratory cells (IMAGE) Washington University School of Medicine Caption The viral protein NS1 (green) is found inside the nuclei (blue) of ciliated human respiratory tract cells (cilia shown in red) that have been infected with respiratory syncytial virus (RSV). Researchers at Washington University School of Medicine in St. Louis have discovered that NS1 alters the activity of immune genes, sabotaging the immune response to RSV infection. Credit Leung and Brody labs Usage Restrictions This image is to be used in accordance with the mission, policies and guidelines of Washington University in St. Louis. Visit https://wustl.edu/about/compliance-policies/media-policies/multimedia-use/ for more information. 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.