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19 de abril de 2024
¿ya circulaba?
Aseguran que el coronavirus ya estaba en Barcelona en marzo del año pasado viernes 26 de junio de 2020 10:00 España y un descubrimiento sorpresivo
La Universidad de Barcelona (UB) ha detectado el SARS-CoV-2 en muestras de aguas residuales recogidas en esa ciudad española el 12 de marzo de 2019, lo que significa que el coronavirus ya estaba presente un año antes de que se declarara la pandemia (11 de marzo de 2020) y estallara la crisis sanitaria en España. El resultado de la investigación probaría que la infección circulaba mucho antes de que se tuviera constancia, según un comunicado difundido por la UB este viernes.
El gobierno español declaró el estado de alarma el 14 de marzo pasado y aprobó medidas severas para restringir el movimiento de la población y las actividades sociales y económicas para contener el contagio. El Ministerio de Sanidad notificó hasta 28.330 defunciones y 247.486 casos en total desde que comenzó la epidemia.
Los expertos de la UB estudiaron semanalmente muestras obtenidas de dos plantas de tratamiento de aguas residuales de la capital regional de Cataluña, bajo la premisa de que existen grandes cantidades de genoma de coronavirus en las heces.
"Los niveles del genoma SARS-CoV-2 coincidieron claramente con la evolución de los casos de COVID-19 en la población", explicó el coordinador del trabajo, Albert Bosch. No obstante, haber encontrado presencia de virus antes de que se diagnosticaran casos demuestra, según los especialistas, que muchos infectados de COVID-19 podrían haber sido confundidos con enfermos de gripe en los servicios de atención primaria sanitaria. "Haber detectado la difusión del SARS-CoV-2 con un mes de anticipación habría permitido una mejor respuesta a la pandemia", según Bosch. La región de Madrid anunció que vigilará 300 puntos de la red de aguas residuales, 45 en la capital de España, para detectar el coronavirus, ya que su eliminación por las heces permite conocer de forma precoz su incidencia, como ya están haciendo otros países europeos. EFE