The new coronavirus was circulating in Italy since September 2019, a study by the National Cancer Institute (INT) of the Italian city of Milan shows, signaling that Covid-19 might have spread beyond China earlier than previously thought. … The Italian researchers’ findings, published by the INT’s scientific magazine Tumori Journal, show that 11.6% of 959 healthy volunteers enrolled in a lung cancer screening trial between September 2019 and March 2020, had developed coronavirus antibodies well before February.