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Read our COVID-19 research and news.
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By Kai Kupferschmidt, Jon Cohen
Scientists question justification for the emergency authorization and worry about its effects on clinical trials of other possible treatments
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By Kai Kupferschmidt
A man in Hong Kong was found to be reinfected with COVID-19, but what that means for vaccines and immunity is unclear
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By Robert F. Service
Saliva could be the key to a faster, cheaper, safer test
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By Meredith Wadman
Grantee calls move “cynical,” conditions “impossible” to meet
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By Leslie Roberts
Countries averted disaster by resuming suspended bed net distribution campaigns
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By Kelly Servick
Northern Hemisphere prepares for winter with little insight about how the new coronavirus and other respiratory viruses interact
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By David Grimm
From the risk pets pose to people to the symptoms your pet might show, we break down the newest science
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By Robert Bazell
Marie Marcelle Deschamps has become an inspiration to many in her home country
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By Jon Cohen
A rare peek into the bone marrow after vaccination shows key antibodymaking cells have a short life span
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By Charlotte Hartley
Skeletons provide first DNA evidence that diverse strains of syphilis circulated in Europe before 1492
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By Dennis Normile
Scientists say it’s unlikely that the virus spread silently for 3 months
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By Jon Cohen
Despite Putin’s reported endorsement, little-tested vaccine is not approved for widespread use until 2021
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By Linda Nordling
Antibody studies suggest large numbers of infections have occurred but the death toll remains low
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By Dennis Normile
Early successes led to complacency, premature lifting of control measures, and social distancing fatigue