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The third Covid-19 vaccine dose increases the level and duration of protection against the Omicron variant and hospitalisation compared to two vaccine doses, finds a new study.
The study, published in the journal PLOS Medicine, showed that two vaccine doses provide only limited and short-lived protection against SARS-CoV-2 infection with the variant.
"Our findings indicate that a third dose is necessary to maintain protection against infection for a longer time and to ensure a high level of protection against Covid-19 hospitalisation with the Omicron variant," said researcher Mie Agermose Gram at Statens Serum Institut, Copenhagen, Denmark.
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