Tag: sars

Coronavirus that causes Covid-19 can produce more than three times as many pathogens than Sars strain, HKU study reveals

The coronavirus that causes Covid-19 can produce more than three times the amount of pathogens than the strain that caused the severe acute respiratory syndrome (Sars) outbreak in 2003, although patients may display less inflammatory and immune responses, a study has found.The finding from the research, led by prominent Hong Kong microbiologist Yuen Kwok-yung, is the first of its kind based on tests conducted on lung tissue removed from Covid-19 patients. The results underlined the virality of…

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Bat virus? Bioweapon? What the science says about Covid-19 origins

As the Covid-19 pandemic has infected its way through human populations around the globe, it has been followed by a web of speculation about where the new coronavirus actually came from.Some possibilities are scientific hypotheses based on genetic data while others borrow from dark conspiracy theories with little or no basis in fact.Laboratory researchers have established solid genetic links between the new coronavirus, known as Sars-CoV-2, and one found in a horseshoe bat in southeastern China…

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What Immunity to COVID-19 Really Means

The presence of antibodies to the SARS-CoV-2 virus could provide some protection, but scientists need more data

-- Read more on ScientificAmerican.com

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