Pfizer booster spurs immune response to new omicron subtypes
By LAURAN NEERGAARD AP Medical Writer Pfizer said its updated COVID-19 booster may offer some protection against newly emerging omicron mutants even though it's not an exact match.…
By LAURAN NEERGAARD AP Medical Writer Pfizer said its updated COVID-19 booster may offer some protection against newly emerging omicron mutants even though it's not an exact match.…