What does full approval of Pfizer’s COVID-19 vaccine mean?

What does full approval of Pfizer’s COVID-19 vaccine mean?

3 years ago
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https://apnews.com/061cccd14adcb85e5eab91ebc8b3a234

What does full approval of Pfizer’s COVID-19 vaccine mean?

It means Pfizer’s shot for people 16 and older has now undergone the same rigorous testing and regulatory review as dozens of other long-established vaccines.