The study involved patients treated at a dedicated COVID-19 hospital in China.
-2 is significantly longer in stool samples than in respiratory and serum samples, highlighting the need to strengthen the management of stool samples in the prevention and control of the epidemic, and the virus persists longer with higher load and peaks later in the respiratory tissue of patients with severe disease.
The study had several limitations, the researchers said, including that it involved patients only from one hospital, and the sample size was too small to compare the effects of treatments in subgroups. Also, many factors affect the viral load in a sample, including how well it was collected, they noted. In addition, the testing method they useddistinguish between viable and non-viable virus, or tell them anything about its ability to replicate.
Ian Jones, professor of virology at the University of Reading in England, who did not work on the research, toldThe study shows that the sicker a patient is, the more virus is present and that it lasts for longer. This is more or less what would be expected although it is good to see the times defined.
"Virus was also found in body secretions other than respiratory samples but at a lesser level. This has been seen before and although it is worth noting it should not detract from the main route of infection, which is via respiratory droplets. Stopping these will have by far the most impact in reducing transmission."-19 cases have been diagnosed worldwide, and 190,890 have died. Over 743,000 people are known to have survived.
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