COVID-19 often goes undiagnosed in hospital workers - study
Here are the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19.
A handout photo shows an employee demonstrating a vial with "Gam-COVID-Vac" vaccine against the coronavirus disease (COVID-19), developed by the Gamaleya National Research Institute of Epidemiology and Microbiology and the Russian Direct Investment Fund (RDIF), during its production at Binnopharm ph(photo credit: REUTERS)ByREUTERS