<p> A single dose of the Pfizer Covid-19 vaccine developed in partnership with BioNTech could significantly reduce the risk of transmission after a single dose, results of a UK study found on Friday.</p>.<p>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. </p>
<p> A single dose of the Pfizer Covid-19 vaccine developed in partnership with BioNTech could significantly reduce the risk of transmission after a single dose, results of a UK study found on Friday.</p>.<p>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. </p>