title: China joins investigation of mystery pneumonia.
authors.forename: David
authors.initials: D
authors.lastname: Cyranoski
mesh_terms: D002681:China / Q000453:epidemiology; D002689:Chlamydia / Q000302:isolation & purification / Q000502:physiology; D017934:Coronavirus / Q000502:physiology; D005202:Asia, Eastern / Q000453:epidemiology; D006801:Humans; D007391:International Cooperation; D018108:Respirovirus / Q000502:physiology; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology / Q000209:etiology* / Q000382:microbiology / Q000821:virology; D014944:World Health Organization