Vidcast:  https://youtu.be/8alCgy0cR3A   Antibodies against the mumps virus appear to have CoVid protective effects.  A study just published by mBio looked at a group of 80 COVID patients, 50 of whom had been vaccinated with MMR II vaccine vs an unvaccinated group.   Those with antibodies against the mumps virus, an RNA virus like CoVid, suffered less severe disease than those without mumps antibodies or low concentrations or titers of them.  The severity of disease was proportional to mumps antibody titer: the asymptomatic had titers of 134-300; mild symptoms below 134; moderate symptoms below 75, and severe symptoms below 32.   Vaccination with MMR and other vaccines may be keeping nearly half of CoVid test positive persons apparently healthy.   https://mbio.asm.org/content/11/6/e02628-20   #covid #mmr