All COVID-19 vaccines that are used in the U.S. target the same original strain of SARS-CoV-2. But boosters designed to protect against the latest Omicron subvariants could be coming soon.

On Aug. 22, Pfizer-BioNTech submitted a request to the U.Sคำพูดจาก สล็อตเว็บตรง. Food and Drug Administration (FDA) to authorize its Omicron-specific vaccine. The shot targets BA.4 and BA.5, which now account for nearly all new infections in the U.S.

In an announcement, Pfizer-BioNTech requested emergency use authorization for a booster dose of the vaccine, which contains a combination of the genetic material mRNA from the original virus circulating when the vaccine was initially …