Cancer cases and deaths are expected to double in Africa during the next two decades, according to findings from a new study by Penn State College of Medicine researchers.
Cancer cases and deaths are expected to double in Africa during the next two decades, according to findings from a new study by Penn State College of Medicine r
COVID vaccines provide protection, but immunity wanes over time. Researchers found a drop from 83% after the first month to 22% after five or more months.
Protection against symptomatic COVID-19 begins to decrease after one month from initial vaccination, while immunity against severe COVID-19 remains high for about six months, according to a recent study by Penn State College of Medicine scientists.
Protection against symptomatic COVID-19 begins to decrease after one month from initial vaccination, while immunity against severe COVID-19 remains high for about six months, according to a recent study by Penn State College of Medicine scientists.