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  1. Apr 2022
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    John Roberts on Twitter
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    1. NatasjaDerbyMcCabe 20 Apr 2022

      John Roberts. (2022, January 28). Some (very) early evidence that secondary attack rates of BA.2 are higher in household settings than those of its older sibling. From the latest Variant TB 35. Https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1050999/Technical-Briefing-35-28January2022.pdf 1/ https://t.co/AFTril1jF1 [Tweet]. @john_actuary. https://twitter.com/john_actuary/status/1487086733149749251

      is:twitter lang:en COVID-19 BA.2 secondary attack rates household settings BA.1 S-gene London
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