A safe and effective COVID vaccine exists: the live attenuated MMR vaccine

At the beginning of the pandemic, nobody knew if vaccines would work in the real world so scientists studied many different ways of stopping a pandemic. One of those approaches was to use existing vaccines as an “innate immunity” booster. The results on the live attenuated MMR vaccine was published as a pre-print last September.

It found that the vaccine has some effectiveness against COVID, perhaps comparable to the Sinovac vaccine.