Pfizer vaccine: Single dose reduces asymptomatic COVID-19 cases four-fold – BBC Focus Magazine

A single jab of the Pfizer vaccine gives a four-fold reduction in the number of asymptomatic coronavirus infections, a new study has indicated.
The new data, from Addenbrookes Hospital in Cambridge, suggests the dramatic reduction in positive tests among asymptomatic healthcare workers who had received one dose of the coronavirus vaccine can make hospitals even safer places to be.
The study, which is awaiting peer review, analysed results from thousands of COVID-19 tests carried out weekly on hospital…

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