Pfizer COVID-19 vaccine reduces transmission after one dose – UK study

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LONDON – A single dose of Pfizer and BioNtech’s COVID-19 vaccine cuts the number of asymptomatic infections and could significantly reduce the risk of transmission of the virus, results of a UK study found on Friday.

Researchers analysed results from thousands of COVID-19 tests carried out each week as part of hospital screenings of healthcare staff in Cambridge, eastern England.

“Our findings show a dramatic reduction in the rate of positive screening tests among asymptomatic healthcare workers after a single dose of the Pfizer-BioNTech vaccine,” said Nick Jones, an infectious diseases specialist at Cambridge University Hospital, who co-led the study. Continue reading.