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Study suggests single vaccine dose can boost protection in previously infected Covid patients

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New Delhi: A single dose of COVID-19 vaccine boosts protection against SARS-CoV-2 coronavirus variants, but only in those previously infected with the disease, according to a study.The researchers looked at the UK and South Africa variants, however, they think it is possible that the findings will apply to other variants in circulation, such as the Brazil (P.1) and India (B.1.617 and B.1.618) variants.The findings, published in the journal Science, show that in those who have not previously been infected and have so far only received one dose of vaccine, the immune response to coronavirus variants of concern may be insufficient.The researchers at Imperial College London, Queen Mary University of London and University College London, looked.

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