The COVID virus invading a cell (IMAGE) DOE/Pacific Northwest National Laboratory Caption Illustration of a SARS-CoV-2 viral particle entering a cell. The particle pierces through a cell’s membrane, made of two layers of lipids. A PNNL-OHSU team has shown how lipids are key to the ability of the virus to replicate. Credit Illustration by Michael Perkins | Pacific Northwest National Laboratory Usage Restrictions Please use credit info. 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.