(Latest Updates) Pfizer seeks OK of updated COVID vaccine booster for fall 2022? CoronaVirus International News (Latest Updates) Pfizer seeks OK of updated COVID vaccine booster for fall 2022? Admin August 27, 2022 0 Pfizer has actually asked US regulators to authorise its mix COVID-19 vaccine that adds defense against the... Read More Read more about (Latest Updates) Pfizer seeks OK of updated COVID vaccine booster for fall 2022?