(CTN News) – On Monday, Pfizer Inc. (PFE.N) and German partner BioNTech said they had sought U.S. approval for a COVID-19 vaccine booster retooled to target the Omicron variant and that doses would be available immediately after approval. The FDA was requested to approve a so-called bivalent vaccine containing the dominant BA.4 and BA.5 variants … Continue reading Pfizer and BioNTech Seek U.S. Authorization For Vaccine Booster Retooled For Omicron