Study documents first case of coronavirus spread by a person showing no symptoms
People showing no symptoms appear to be able to spread the novel coronavirus that has caused an outbreak in China and led world health authorities to declare a global emergency, researchers reported Thursday in the New England Journal of Medicine. If confirmed, the finding will make it much harder to contain the virus.
The case described — from Germany — could help resolve one of the major unknowns about the virus, which as of Thursday night had infected nearly 9,700 people in China and killed 213. About 100 more infections have been reported in 18 other countries, but no deaths.
