According to a recent research presented by the Centers for Disease Control and Prevention (CDC), natural immunity is superior to vaccination against Delta virus.
As per the study, immunity from earlier COVID-19 infection was stronger than resistance from COVID-19 immunizations against the Delta virus subtype.
Researchers examined at health records from California and New York from May 30 to November 20, 2021. COVID-19 patients were divided into four groups: unvaccinated with no past ...
