[Advances on presymptomatic or asymptomatic carrier transmission of COVID-19].
[Advances on presymptomatic or asymptomatic carrier transmission of COVID-19].
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DOI：
10.3760/cma.j.cn112338-20200228-00207
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发表时间：
2020-04-10
影响因子：
--
通讯作者：
Li, L M
中科院分区：
文献类型：
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作者：
Gao, W J;Li, L M
COVID-19 正在迅速传播。潜伏期患者和健康携带者是可能的传播源。然而，由于症状不存在，无法有效识别此类感染源。尽管有一些研究表明症状前或无症状携带者可能导致COVID-19传播，但迄今为止研究证据非常缺乏。近一半的文献处于预印本状态，未经同行评审。 “症状前或无症状感染的传播程度”问题尚不完全清楚。迫切需要在较大的密切接触者或一般人群中筛查受感染的携带者，并评估其传播风险。
COVID-19 is rapidly spreading. Patients in incubation period and healthy carriers are possible sources for transmission. However, such sources of infection cannot be effectively identified due to the symptoms absent. The research evidence is very lacking so far, although there are a few studies suggesting that presymptomatic or asymptomatic carrier may cause COVID-19 transmission. Nearly half of the literature is in the state of preprint without peer review. The question of "the degree to which presymptomatic or asymptomatic infections can transmit" is not fully understood. There is an urgent need to screen infected carriers in larger close contacts or in the general population, and assess their risk for transmission.