Nation Pfizer-BioNTech to seek FDA approval this week for vaccine booster: Latest COVID-19 updates August 25, 2021August 25, 2021Christal Hayes, Jeanine Santucci and Ryan W. Miller, USA TODAYComments Off on Pfizer-BioNTech to seek FDA approval this week for vaccine booster: Latest COVID-19 updates Johnson & Johnson said studies show a booster dose of its vaccine offered a ninefold increase in antibodies. The latest COVID-19 updates.