Researchers from the University of Barcelona have detected the presence of SARS-COV2 in waste water samples collected in Barcelona on March 12, 2019. According to these data, the virus would have been present among us a year earlier than previously thought. .
As reported by the University of Barcelona through a statement, the presence of the new coronavirus would prove the presence of the virus a year before the pandemic declared.
Researchers from the Enteric Virus Group of the UB Gemma Chavarria-Miró, Eduard Anfruns-Estrada and Susana Yeso , led by Rosa Maria Pintó and Albert Bosch, have participated in the investigation .
Frozen samples from the months prior to the start of the systematic sampling of the waters, where the virus appeared between the beginning of January and the beginning of March 2020, have been analyzed. influenza diagnoses in primary care, contributing to community transmission before public health measures were taken, "said Albert Bosch, president of the Spanish Society of Virology.
With these data, the experts expanded the search framework to the frozen samples of 2018 and 2019. And it was here that they found the virus: “all the samples were negative for the presence of SARS-COV-2 genomes except for 12 March 2019, where the levels of presence of the virus were very low but were clearly positive by PCR, and also, using two different tests, "the researchers explained.
Ako ovaj rad prodje recenziju mislim da ce doci do velikog obrta u odnosu prema COVID-19 zarazi i pandemiji koju je ona prouzrokovala.