Researchers say COVID cases have spread in countries around the world before China.

The new findings indicate There is an epidemic of COVID-19. In many countries around the world Before the first confirmed case in China

Researchers from a university in Milan published a report in December last year that researchers at a university in Milan today said the results of a test for COVID-19 infection have occurred. Oral swap methods of 39 people between September 2019 and February 2020 found that 4-year-old boys who took the test on December 5, 2019, tested positive. Despite never traveling anywhere before Therefore it is believed that someone is infected with the coronavirus Before the Italian authorities confirmed the first case of the infection in the country. And it speculates that COVID-19 is likely to spread in Italy and other countries. In Europe since autumn Or around the end of September to November 2019

The Italian National Institutes of Health said in a report published on June 18 last year that the genetic material of the novel coronavirus has been found in the north of the country in Turin and Milan since December 2019.

France A report published by researchers from northern Paris. It shows that the outbreak had begun to spread domestically starting in December 2019, or one month before the first case was reported in the country, with researchers selecting 14 patients admitted to the ICU. With flu-like symptoms from December 2, 2019 to January 16, 2020, and testing samples collected from their respiratory system, a 42-year-old male patient was admitted to the ICU. As of December 7, 2019, there was a positive test for the COVID virus, although the patient was not involved. With the epidemic in China

Spain confirmed the first case of COVID on January 31 last year and reported the case in late February last year. But researchers at the University of Barcelona published a report indicating that Analysis of the wastewater samples collected from January 2018 to December 2019 found that the wastewater samples collected on March 12, 2019 had positive effects of COVID. This means that COVID was found in Barcelona before the world’s first case was reported.

November 30 last year Researcher at the US National Centers for Disease Control and Prevention. Published a report on “Clinical Infectious Diseases” states that antibodies to the novel coronavirus were found in blood samples of 106 of the 7389 American citizens collected from December 13, 2019 to January 17, 2020.

Brazil’s Unified University of Santa Catarina released a report on July 2 last year that the genetic material of the new corona virus was detected from a second sewage sample collected on November 27, 2019. The month before the first case was reported in the Americas.

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