zh-cn	中国无症状感染者的传染性有多高？ 
en-us	How contagious are asymptomatic carriers in China？ 

zh-cn	2月5日，中国卫健委发布《新型冠状病毒感染的肺炎诊疗方案(试行第五版）》，明确“无症状感染者也可能成为传染源”。
en-us	On February 5, China's National Health Commission (NHC) clearly stated that asymptomatic carriers could be the source of infection in the Protocol for Prevention and Control of Covid-19 (Edition 5). 

zh-cn	3月26日，李克强总理主持召开中央应对新冠肺炎疫情工作领导小组会议时强调“要高度重视防治无症状感染者”，并要求卫健委组织专家对于无症状感染者的传染性、病情发展等做出研判。
en-us	On March 26, at the meeting of the Leading Group of the CPC Central Committee for Prevention and Control of Covid-19, Chinese Prime Minister Li Keqiang emphasized that special attention should be put to asymptomatic carriers and required NHC to analyze their contagiousness and conditions. 

zh-cn	3月28日，河南郏县一例由无症状感染者传染的新增本地病例受到公众广泛重视。 
en-us	On March 28, a new case infected by an asymptomatic carrier in Henan province raised concerns in China. 

zh-cn	新冠病毒在无症状感染者的体内存在时间超过三周，与有症状患者一样，无症状患者可以通过呼吸道飞沫和密切接触传播病毒。
en-us	The virus can persist in asymptomatic carriers for more than 3 weeks. During this period, asymptomatic coronavirus carriers, like symptomatic patients, can infect others by droplets and direct contact. 

zh-cn	有研究指出，其传染性取决于无症状感染者在人群中的分布、排出病毒的数量和持续时间，以及无症状感染者的职业、行为习惯、生活习惯、活动范围和卫生防疫措施等。 
en-us	Based on a recent study, the contagiousness depends on the proportion of asymptomatic cases in the population, the amounts of virus being expelled, and the duration of expelling, as well as other factors such as patients’ occupation, behaviors, geographic scope of activities and sanitary measures. 

zh-cn	无症状感染者的传染性高低尚无定论。
en-us	No final conclusion has been reached about how contagious asymptomatic virus carriers are. 

zh-cn	1月底，中国国内多名流行病学专家指出，无症状感染者携带病毒数量少、传播危害较小，不会成为“超级传播者”。
en-us	In late January, several Chinese epidemiologists stated that asymptomatic carriers carry a lower amount of the novel coronavirus in their body, rendering themselves unlikely to be super-spreaders. 

zh-cn	但在有限数据下，已有研究普遍认为无症状感染者的传染性与确诊病例差异不大。
en-us	However, other researches so far generally agree that the infectiousness of asymptomatic virus carriers differs little from confirmed cases. 

zh-cn	2月20日，《新英格兰医学杂志》发表广东省疾控中心等机构的科研人员的文章显示，无症状感染者样本中检测出的病毒载量与有症状患者相似，提醒无症状感染者的传染力不可忽视。
en-us	In a paper published in The New England Journal of Medicine on February 20, researchers of Guangdong Provincial Center for Disease Control and Prevention and other institutions warned about the infectiousness of asymptomatic carriers. These researchers found that the viral load detected in samples of asymptomatic carriers was similar to that in symptomatic ones. 

zh-cn	3月4日，宁波市疾控中心研究人员以宁波市病例为样本，认为确诊病例与无症状感染者的传染性在统计学意义上无差异。 
en-us	Another study conducted by Ningbo Municipal Center for Disease Control and Prevention with samples of Ningbo cases on March 4, suggests that the infectiousness of confirmed cases and asymptomatic carriers is not statistically significant. 

zh-cn	值得注意的是，受无症状感染者传染的二代患者有可能进入重症感染阶段。
en-us	It is worth noting that second-generation patients infected by asymptomatic carriers could experience severe symptoms. 

zh-cn	1月27日中国通报的首例无症状感染者，被其感染的5人中2人发展为重症。
en-us	On January 27, China reported the first asymptomatic carrier who infected five other people and among them two developed into severe cases. 

zh-cn	南京医科大学研究人员在《中国科学·生命科学》发表文章，指出南京一例无症状感染者的密切接触者在被确诊后一周转为重症。
en-us	In an article in SCIENCE CHINA Life Sciences, a researcher of Nanjing Medical University also pointed out that a close contact of an asymptomatic carrier in Nanjing developed into severe case one week after confirmation.