MMR vaccine could protect against COVID-19

(American Society for Microbiology) The measles-mumps-rubella (MMR) vaccine has been theorized to provide protection against COVID-19. In a new study published in mBio, an open-access journal of the American Society for Microbiology, researchers provide further proof of this by showing that mumps IgG titers, or levels of IgG antibody, are inversely correlated with severity in recovered COVID-19 patients previously vaccinated with the MMR II vaccine produced by Merck