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Wuhan Coronavirus Cluster Suggests Human-to-Human Spread

A Chinese man became ill from a novel coronavirus (2019-nCoV) 4 days after arriving in Vietnam to visit his 27-year-old son. Three days later the healthy young man was also stricken, according to a report published online today in the New England Journal of Medicine.

“This family cluster of 2019-nCoV infection that occurred outside China arouses concern regarding human-to-human transmission,” the authors write.

The father, age 65 years and with multiple comorbidities including hypertensiontype 2 diabetescoronary heart disease with stent placement, and lung cancer, flew to Hanoi with his wife on January 13; they traveled from the Wuchang district in Wuhan, where outbreaks of 2019-nCoV have been occurring. On January 17, the older man and his wife met their adult son in Ho Chi Minh City and shared a hotel room with him for 3 days. The father developed a fever that same day and the son developed a dry cough, fever, diarrhea, and vomiting on January 20. Both men went to a hospital emergency department on January 22.