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Understanding the Delta variant - Expert Reaction
nzdoctor.co.nz - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nzdoctor.co.nz Daily Mail and Mail on Sunday newspapers.
India declares Nepal variant - or Delta plus - to be of concern
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India declares Nepal variant - or Delta plus
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Moscow records 9,056 new Covid cases - its highest ever
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Research identifies missed COVID-19 cases by retrospective testing of throat swabs
Research published today in the
Journal of General Virology has identified missed cases of SARS-CoV-2 by retrospective testing of throat swabs.
Researchers at the University of Nottingham screened 1,660 routine diagnostic specimens which had been collected at a Nottingham hospital between 2 January and 11 March 2020 and tested for SARS-CoV-2 by PCR. At this stage of the pandemic, there was very little COVID-19 testing available in hospitals, and to qualify patients had to meet a strict criterion, including recent travel to certain countries in Asia or contact with a known positive case.