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Majority of People Are Already Resistant to SARS-CoV-2

According to research conducted in Switzerland, SARS-CoV-2-specific antibodies are only found in the most severe cases — about 1 in 5. That suggests COVID-19 may in fact be five times more prevalent than suspected. It also means it may be five times less deadly than predicted. The study, “Systemic and Mucosal Antibody Secretion Specific to SARS-CoV-2 During Mild Versus Severe COVID-19,” was posted on the prepublication server bioRxiv, May 23, 2020. According to the authors: “When symptomatic, COVID-19 can range from mild flu-like illness in about 81% to severe and critical disease in about 14% and 5% of affected patients, respectively.” The Swiss study, which sought to investigate SARS-CoV-2-specific antibody responses, found that even though people who had been exposed to infected individuals had SARS-CoV-2-specific immunoglobulin A (IgA) antibodies in their mucosa, there were no virus-specific antibodies in their blood. Read more...

 

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