
The Pfizer-BioNTech "bivalent" shot protects against the most prevalent subvariants of Omicron, BA.4 and BA.5, and is the first approved for use in children between the ages of five and 11.

The Pfizer-BioNTech "bivalent" shot protects against the most prevalent subvariants of Omicron, BA.4 and BA.5, and is the first approved for use in children between the ages of five and 11.