Health
Scientists decode how COVID-19 begins to appear in humans – National Herald
Researchers have found the likely order in which COVID-19 symptoms first appear — fever, followed by cough, muscle pain, and then nausea, and/or vomiting and diarrhoea
But the timing and symptoms in the upper and lower gastrointestinal tract set COVID-19 apart.
“The upper GI tract (i.e., nausea/vomiting) seems to be affected before the lower GI tract (i.e., diarrhoea) in COVID-19, which is the opposite from MERS and SARS,” the scientists wrote.
The authors predicted the order of symptoms this spring from the rates of symptom incidence of more than 55,000 confirmed coronavirus cases in China, all of which were collected by the World Health Organization.
They…
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