More than 10 times as many people in Germany have likely been infected with the coronavirus than the number of confirmed cases, researchers from the University of Bonn have concluded from a field trial in one of the worst hit towns. Thilo Schmuelgen writes for Reuters that The preliminary study results, which have yet to be peer reviewed for publication in a scientific journal, serve as a reminder of the dangers of infection by unidentified carriers of the virus, some of whom show no symptoms, the researchers said.