Studies have shown that COVID-19 spread in Italy last summer.
According to a report in the Italian Evening Post on the 15th, a recent study by the National Cancer Institute in Milan showed that COVID-19 antibody was detected in blood samples collected from residents in September 2019, which means that COVID-19 spread in Italy far earlier than February this year, possibly dating back to the summer of 2019. According to the research results, the paper “COVID-19 Antibody Accidentally Detected Before the Italian Epidemic” was published in the medical journal Cancer Journal on the 11th. On November 11th, the Journal of Oncology published a paper entitled “COVID-19 Antibody Accidentally Detected Before the Italian Epidemic”.
From September 2019 to March 2020, Milan National Cancer Institute recruited 959 healthy volunteers to participate in a lung cancer test. After the outbreak of pneumonia in COVID-19, the researchers tested all the preserved blood samples by COVID-19, and the results showed that 111 of the 959 samples were positive, of which 16 were positive for immunoglobulin G antibody and 97 were positive for immunoglobulin M antibody. On November 14th, local time, Milan, Italy, prepared the COVID-19 detection reagent for citizens.
The positive blood samples came from 13 regions of Italy, of which 23 were collected in September 2019, 27 were collected in October, 26 were collected in November and 11 were collected in December; The other three and 21 were taken in January and February this year respectively. In addition, 6 of the 111 positive samples were positive for COVID-19 neutralizing antibody, and 4 of them were collected in early October 2019.
The study also mentioned that in November 2019, many doctors in Italy had discovered atypical interstitial pneumonia among the elderly and vulnerable people. Because there was no information about COVID-19 at that time, all of them were classified as severe seasonal influenza.
According to the latest statistics released by the Italian Ministry of Health on November 15, 33,979 confirmed cases of COVID-19 pneumonia have been added in the past 24 hours, with a total of 1,178,529 confirmed cases; There were 546 new deaths and 45229 cumulative deaths. On that day, 195,275 COVID-19 nucleic acid tests were completed in Italy, and the positive rate was 17.4%.
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