Coronavirus Spain wastewater, Earliest known novel Covid-19 detected.

Health Authorities in Spain have tested residual waste samples from Barcelona and discovered traces of Covid-19 as early as March 2019.

Investigators from the University of Barcelona have identified traces of the SARS-Cov-2 virus in samples from wastewater that were recovered from the Barcelona plant in March of 2019.

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This means that the virus could have been circulating around the area much earlier than authorities expected.

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The investigators defrosted samples of residual waters which showed that on January 15 the virus was already present, more than 40 days before the first official case of Covid-19 was detected.

The coordinator of the project, Albert Bosch, contends that the “SARS-CoV-2 genome levels clearly coincided with the evolution of Covid-19 cases in the population,” and that having detected this virus a month in advance, “would have allowed for a better response to the pandemic.”

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