The first case of coronavirus being spread by a person with no symptoms has been found
As the 2019 novel coronavirus outbreak continues to spread in China, researchers have found that people carrying the virus but not showing symptoms may be able to infect others. If infected people can spread 2019-nCoV while asymptomatic, it could be harder to trace contacts and contain the epidemic, which is already a global health emergency (SN: 1/30/20). An unnamed Shanghai woman passed the virus to business colleagues in Germany before she showed signs of the illness, doctors report January 30 in the New England Journal of Medicine. The woman had attended a business meeting at the headquarters of the auto supplier Webasto in Stockdorf on January 20 and flew back to China on January 22. She became ill with mild symptoms on the flight back to China and tested positive for the virus. Meanwhile, one of her German colleagues fell ill on January 24 with a fever, sore throat, chills and muscle aches. His illness was brief, and he returned to work on January 27,...