[关键词]
[摘要]
自2019年12月,中国武汉爆发了新型冠状病毒(SARS-CoV-2)导致的新型冠状病毒肺炎(COVID-19),截至2020年2月26日,已导致累计78 190人确诊感染,超过2 700人死亡,除中国外,亚洲、北美、欧洲、非洲等已有20多个国家发现新型冠状病毒确诊病例。中国疾病预防控制中心研究结果表明,无症状感染者的比例占1.2%,这些无症状传染者在潜伏期很可能具有传染性。确定SARS-CoV-2的起源和了解目前常见的检测方法,将对战胜这次疫情以及日后防范其卷土重来至关重要。
[Key word]
[Abstract]
In December 2019, corona virus disease 2019 (COVID-19) outbreak caused by a new coronavirus, the 2019 novel coronavirus (SARS-CoV-2), began in Wuhan, China. As of february 26, 2020, SARS-CoV-2 has infected a total of 78 190 people and killed more than 2 700 people. Except China, Asia, Europe, North America, Africa, etc. Confirmed cases have been found in more than 20 countries. In addition, research data from the Chinese Center for Disease Control and Prevention showed that the proportion of asymptomatic new coronavirus infections accounted for about 1.2%. Besides, Asymptomatic infections are likely to remain infectious during the incubation periods. Conform the origin of SARS-CoV-2 and common detection methods will be vital for us to fight against this epidemic and to prevent a comeback of the new coronavirus in the future.
[中图分类号]
R373.1
[基金项目]