File:WHO EN-1 How does a virus change 03Mar2021.webm

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Description What causes a virus to change to a new variant? When a virus is widely circulating in a population and causing many infections, the likelihood of the virus mutating increases. The more opportunities a virus has to spread, the more it replicates – and the more opportunities it has to undergo changes. Originally published on the World Health Organization, Newsroom, Feature stories, The effects of virus variants on COVID-19 vaccines.
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Source URL http://www.who.int/news-room/feature-stories/detail/the-effects-of-virus-variants-on-covid-19-vaccines
Author World Health Organization

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Date/TimeThumbnailDimensionsUserComment
current15:34, 25 March 20211 min 25 s, 1,920 × 1,080 (1.15 MB)WHO-openaccess (talk | contribs)Imported media from uploads:fd76f3d6-8d7d-11eb-8f43-0a7fb64cb320

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