Chinese health authorities began on Wednesday reporting on asymptomatic cases of the coronavirus as part of an effort to allay public fears that people could be spreading the virus without knowing they are infected with it. China, where the coronavirus emerged late last year, has managed to bring its outbreak under control and is easing travel restrictions in virus hot spots. Up to now, the number of known asymptomatic cases has been classified, and it is not included in the official data, though the South China Morning Post newspaper, citing unpublished official documents, recently said it was more than 40,000.
