#Pfizer says COVID vaccine lasts 6 months, protects against variants
“#Pfizer says COVID vaccine lasts 6 months, protects against variants” The COVID-19 vaccine developed by Pfizer and partnering biotechnology company BioNTech has proven “highly effective” against the coronavirus — including variants — for at least six months after full inoculation. The two companies announced on Thursday that the latest phase of testing — which includes…