India, March 26 -- The deadly Sars-CoV-2 virus can stay in the human excreta much longer than in respiratory samples, a Lancet study has said on spread of Covid-19.

"Evidence has shown that the SARS-CoV-2 can be found in faeces, and that stool samples can remain positive for the virus even when it is no longer detectable in the respiratory tract, suggesting the possibility of a faecal-oral route of transmission," the study, published on March 16, said.

"This concept is supported by the presence of gastrointestinal symptoms in some patients affected by Covid-19," it further said.

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