By the Associated Press.
Pfizer says it is about to seek U.S. authorization for a third dose of its COVID-19 vaccine.
The company said Thursday that another shot could dramatically boost immunity and maybe help ward off the latest worrisome coronavirus mutant.
Research from multiple countries shows the widely used COVID-19 vaccines offer strong protection against the highly contagious delta variant. But virus-fighting antibodies naturally wane.
Pfizer says early data from a company trial suggests people’s antibody levels jump after they get a third dose. But the filing doesn’t mean third doses would be rolled out any time soon. Public health officials would have to decide if they’re really needed.
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