For the pneumonia epidemic in COVID-19, which is still raging in many countries, virus traceability has always been one of the key tasks of scientists around the world. With more and more research results being disclosed, many evidences show that Wuhan may not be the “source of COVID-19” as some foreign media say. Scholars from Milan University in Italy and …

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, …