Cell infected with SARS-CoV-2 virus (IMAGE) Johns Hopkins Medicine Caption Colorized scanning electron micrograph of a cell (purple) heavily infected with SARS-CoV-2 virus particles (yellow). A recent study by Johns Hopkins Medicine shows that blocking a specific protein in a biological pathway may prevent SARS-CoV-2 infection and keep the virus from misdirecting the immune system against healthy cells and organs. Credit National Institute of Allergy and Infectious Diseases, National Institutes of Health Usage Restrictions None License Licensed 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.