Pfizer will seek permission from US regulators within the next few weeks Covid-19 vaccine booster shot As new virus strains increase, we will strengthen our protection against infection.
The company also said it plans to begin clinical trials of an updated version of the vaccine that enhances protection from delta mutants in August.
Pfizer and partner BioNTech SE said Thursday that they would seek approval for a third shot based on encouraging early research data.
Data show that booster shots at least 6 months after the second dose produced antibodies that were protective against the original strain of the virus and a recent strain known as beta. ..
According to both companies, antibody levels were 5 to 10 times higher than after two doses.
Pfizer Asks Regulators to Approve Covid-19 Vaccine Booster
Source link Pfizer Asks Regulators to Approve Covid-19 Vaccine Booster