"Preliminary evidence that MMR vaccine might provide protection against COVID-19"
"As an initial test of this hypothesis, we identified that 1) age groups that most likely lack of MMR vaccine-induced immunity had the poorest outcome in COVID-19, and 2) COVID-19 disease burden correlates with rubella antibody titres, potentially induced by SARS-CoV2 homologous sequences."
https://www.medrxiv.org/conten...
