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1 in 3 Covid infections appear to be asymptomatic

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    New research published by DP Oran MD and Eric Topol MD conculde that

    1) one-in-three individuals with the SARS-CoV-2 infections remain asymptomatic.

    2) nearly three-quarters of people without symptoms who receive a positive PCR test will remain asymptomatic.

    The research findings make a "strong case for altering control strategies for Covid-19 to better account for asymptomatic transmission risk".

    Oran DP, Topol EJ.  The proportion of SARS-CoV-2 infections that are asymptomatic: a systematic review.  Ann nternal Medicine 2021;  electronic publication.  DOI: 10.7326/M20-6976.

    This translational research was funded by the National Institutes of Health (NIH). 

    The authors are from the Scripps Research Translational Institute, La Jolla, California.