On Aug. 23, the FDA gave full approval to the Pfizer/BioNTech COVID-19 vaccine for people 16 and older. Since last December, nearly 202 million Americans have received at least one dose of a vaccine, including the two-dose vaccines made by Pfizer/BioNTech and Moderna, and Johnson & Johnson’s single-dose vaccine. In recent months, the pace of vaccinations has slowed even as the delta variant is causing a new wave of cases, hospitalizations and deaths. But the FDA’s endorsement of the Pfizer/BioNTech vaccine may convince more unvaccinated people to get their shot and clear the way for more employers to impose vaccine mandates. A recent poll from the Kaiser Family Foundation found that 31% of unvaccinated people would be more likely to get their shots if the vaccine gets full approval.