Vaccine effectiveness against COVID-19 infection dropped from 91% to 66% once the delta variant accounted for the majority of circulating virus, according to a study published Tuesday by the U.S. Centers for Disease Control and Prevention.
COVID Vaccine Remains Effective Preventing Hospitalizations Even Faced With the Delta Variant
Veuer
In the face of the Delta variant, COVID-19 vaccines are proving to be highly effective against hospitalization. Veuers Maria..
