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Viral Shedding Continues Up to 6 Weeks After Coronavirus Symptom Onset

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Patients may continue to shed the SARS-CoV-2 virus for up to six weeks after symptoms emerge, a small study of recovered COVID-19 patients suggests.

"In the convalescence period, a trace of virus may still be detected," Dr. Sheng Zhang of Huazhong University of Science and Technology in Wuhan told Reuters Health by email. "However, similar to other virus infections, this is not indicative of the transmission ability of the infected individual."

In the first three weeks after symptom onset, the majority of RT-PCR results were positive for SARS-CoV-2. From week three onward, ...

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