Can the measles, mumps and rubella vaccine (MMR) protect front-line health care workers from COVID-19?

For half a century, the measles, mumps and rubella vaccine (MMR) has been safely available to hundreds of millions of people worldwide and has succeeded in reducing the worldwide incidence of measles, mumps and rubella.
, the vaccine is usually given to children.
growing evidence that MMR vaccines carry small amounts of live, weak viruses that train the body's immune system against multiple pathogens, the mmR vaccine has the potential to prevent COVID-19.
International Research Network is launching a clinical trial to assess whether the measles, mumps and rubella vaccine (MMR) protects front-line health care workers from SARS-CoV-2, with the aim of recruiting 30,000 health care workers worldwide.
Washington University School of Medicine in St. Louis is the clinical focal center for the international trial, which was initiated by the University of Washington, University College London and the University of the Witwatersrand.
. Michael S. Avidan, dean of the Department of Anesthesiology at the University of Washington, said, "We know that the MMR vaccine is safe, and we think it can prevent COVID-19."
the vaccine includes a small but very weak amount of measles, mumps and rubella viruses.
the vaccine appears to enhance the body's immune response to general infections, not just specific viruses."
.