Single dose of Pfizer vaccine could be enough to protect millions who have had Covid, studies show

Single dose of Pfizer vaccine could be enough to protect millions who have had Covid, studies show

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A SINGLE dose of the Pfizer vaccine could be enough to protect millions of people who have already had coronavirus, a study has found.  Researchers from Public Health England said the findings could “potentially accelerate” the vaccine rollout – with less Brits needing a second dose.  One of the studies tracked 51 health workers in [...]

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