Coronavirus traces found in Spanish sewage sample from March 2019

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2020-06-29 14:22:28

Spanish virologists have found traces of the novel coronavirus in a sample of Barcelona waste water collected in March 2019, nine months before the COVID-19 disease was identified in China, the University of Barcelona said on Friday.

The discovery of virus genome presence so early in Spain, if confirmed, would imply the disease may have appeared much earlier than the scientific community thought.

The University of Barcelona team, who had been testing waste water since mid-April this year to identify potential new outbreaks, decided to also run tests on older samples.

They first found the virus was present in Barcelona on Jan. 15, 2020, 41 days before the first case was officially reported there.

Then they ran tests on samples taken between January 2018 and December 2019 and found the presence of the virus genome in one of them, collected on March 12, 2019.

“The levels of SARS-CoV-2 were low but were positive,” research leader Albert Bosch was quoted as saying by the university.

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