Prior COVID-19 infection does not protect as well as vaccine against reinfection: CDC
https://healthell.blogspot.com/2021/11/prior-covid-19-infection-does-not.html
Prior COVID-19 infection does not protect as well as vaccine against reinfection: CDC
Vaccine-induced immunity provides more protection than infection- induced immunity against laboratory confirmed Sars-Cov-2 virus, according to recent CDC report.