evidence: The Food and Drug Administration has given its full approval of the Pfizer-BioNTech COVID-19 vaccine, calling it a "key achievement for public health." [...] But among the measures the FDA required for full approval that weren't required for emergency use were data on how people fared six months after being fully vaccinated. The FDA also inspected manufacturing facilities in the intervening months. [...] "While millions of people have already safely received COVID-19 vaccines, we recognize that for some, the FDA approval of a vaccine may now instill additional confidence to get vaccinated," Woodcock of the FDA said.