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COVID-19: Flushing Toilets Can Spread Virus In The Air, Says Report

COVID-19: Flushing Toilets Can Spread Virus In The Air, Says Report

Flushing creates turbulence and tiny bits of fecal matter can be thrown into the air: Report

Beijing:

The next time you flush your toilet, close the lid. A recent study by researchers at Yangzhou University in China claims the novel coronavirus can survive in the human digestive tract and appear in faeces of the infected, news agency Press Trust of India reported on Wednesday.

The study, published in the journal Physics of Fluids, used computer models to simulate water and air flows in a flushing toilet and the resulting droplet cloud. This, scientists often refer to this as “toilet plume aerosol”.

Flushing creates a great deal of turbulence and tiny bits of fecal matter, which the naked eye can’t see, can be thrown into the air and that can stick to aerosols and settle on the surroundings or anyone visiting the toilet next can breathe it.

“Flushing will lift the virus up from the toilet bowl,” co-author of the paper Ji-Xiang Wang, who researches fluids at Yangzhou University, said in an email, according to Washington Post. Mr Wang further said, people “need to close the lid first and then trigger the flushing process.”

“One can foresee that the velocity will be even higher when a toilet is used frequently, such as in the case of a family toilet during a busy time or a public toilet serving a densely populated area,” Mr Wang said.

Public toilets are known spreaders of viruses transmitted via ingestion but it has not been proved that it also causes the spread of COVID-19. The role of toilets in the transmission of respiratory viruses has not been established, Charles P. Gerba, a microbiologist at the University of Arizona told the Washington Post.

“The risk is not zero, but how great a risk it is, we don’t know,” Mr Gerba, an expert in the field for 45 years, said. “The big unknown is how much virus is infectious in the toilet when you flush it…and how much virus does it take to cause an infection,” he added.

Bryan Bzdek, Research Fellow at the University of Bristol, who was not involved in the study, told the PTI, “Even if the virus were contained in the produced aerosols, it is unknown whether the virus would still be infectious; there is not yet clear evidence for faecal-oral transmission.”

(With inputs from Washington Post and PTI)

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