COVID-19 Virus (IMAGE) Howard Hughes Medical Institute Caption The virus that causes COVID-19, called SARS-CoV-2, shown here in an electron microscope image, can trigger severe cases of infection in some younger patients. Studying them could help scientists pinpoint genetic mutations that make people more susceptible to the disease. Credit NIAID-RML Usage Restrictions Must use credit. 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.