Italy travel linked to 1 in 4 first virus cases outside China: study

People who had visited Italy accounted for more than a quarter of the first reported cases of the new coronavirus outside China, according to a new study that found most initial infections were linked to just three countries. Researchers from the US Centers for Disease Control and Prevention used publicly-available data to trace the early spread of COVID-19 to dozens of affected countries in the 11 weeks before the World Health Organization…