People who have been vaccinated with a single dose of either the Oxford-AstraZeneca or Pfizer-BioNTech vaccines were 65% less likely to get a new Covid infection, a UK study has found. The chances of becoming infected by COVID (SARS-CoV-2) fell sharply after a first dose. However, some people can still get Covid after being vaccinated but the ongoing transmission is reduced.
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Thursday 29 April 2021
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