The US Food and Drug Administration approved the EUA for Pfizer’s COVID-19 vaccine in December last year. Until yesterday, more than 240 million people in the United States have been vaccinated with this vaccine. However, the US government has approved the EUA for three COVID-19 vaccines, and none of them have been formally approved before.
US public health officials hope that after the Pfizer/BNT vaccine is formally approved, more Americans who have not been vaccinated will consider that the vaccine is safe and effective. Some Americans are suspicious of vaccination, which has affected the United States’ anti-epidemic actions.
Up to now, about 51% of the people in the United States have received two complete doses of COVID-19 vaccine. However, the highly infectious Delta variant is causing new epidemics in some areas of the United States with low vaccination rates.
