'Our best defense': Pfizer says third dose of its COVID vaccine protects against omicron

'Our best defense': Pfizer says third dose of its COVID vaccine protects against omicron

A third dose of the Pfizer-BioNTech vaccine appears to be as effective against omicron as two doses were against the original variant.

     

Source: USA Today Personal Finance

'Our best defense': Pfizer says third dose of its COVID vaccine protects against omicron

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