One Covid vaccine dose may be enough to protect people already infected, research shows
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mirror.co.ukA single dose of the vaccine from Pfizer or Moderna is enough to protect people who have previously been infected with coronavirus, new research suggests.
Two papers, which have not yet been peer-reviewed, found that a single shot of either vaccine produced high concentrations of antibodies, often exceeding the level seen for those given two doses.
People who had previously suffered coronavirus were also more likely to report flu-like side-effects after their vaccine as their immune response was re-stimulated, experts said.
In the first paper, from researchers at the School of Medicine at Mount Sinai New York, 109 people were recruited, of whom 68 were negative for previous infection and 41 had had Covid-19 before.
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