Pfizer data suggest third dose of Covid-19 vaccine 'strongly' boosts protection against Delta variant - CNN
Pfizer data suggest third dose of Covid-19 vaccine 'strongly' boosts protection against Delta variant - CNN: A third dose of the Pfizer/BioNTech Covid-19 vaccine can "strongly" boost protection against the Delta variant -- beyond the protection afforded by the standard two doses, suggests new data released by Pfizer on Wednesday.
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