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. 2020 Jun 11;221(12):1948-1952.
doi: 10.1093/infdis/jiaa206.

Transmission Potential of Asymptomatic and Paucisymptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infections: A 3-Family Cluster Study in China

Xiao-Lin Jiang  1 , Xiao-Li Zhang  2 , Xiang-Na Zhao  3 , Cun-Bao Li  4 , Jie Lei  1 , Zeng-Qiang Kou  1 , Wen-Kui Sun  1 , Yang Hang  1 , Feng Gao  5 , Sheng-Xiang Ji  2 , Can-Fang Lin  4 , Bo Pang  1 , Ming-Xiao Yao  1 , Benjamin D Anderson  6 , Guo-Lin Wang  7 , Lin Yao  7 , Li-Jun Duan  7 , Dian-Min Kang  1 , Mai-Juan Ma  7
Affiliations

Transmission Potential of Asymptomatic and Paucisymptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infections: A 3-Family Cluster Study in China

Xiao-Lin Jiang et al. J Infect Dis. .

Abstract

Data concerning the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in asymptomatic and paucisymptomatic patients are lacking. We report a 3-family cluster of infections involving asymptomatic and paucisymptomatic transmission. Eight of 15 (53%) members from 3 families were confirmed with SARS-CoV-2 infection. Of 8 patients, 3 were asymptomatic and 1 was paucisymptomatic. An asymptomatic mother transmitted the virus to her son, and a paucisymptomatic father transmitted the virus to his 3-month-old daughter. SARS-CoV-2 was detected in the environment of 1 household. The complete genomes of SARS-CoV-2 from the patients were > 99.9% identical and were clustered with other SARS-CoV-2 sequences reported from China and other countries.

Keywords: COVID-2019; SARS-CoV-2; asymptomatic; paucisymptomatic; transmission.

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