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Volume 26, Number 9—September 2020

Research Letter

Large SARS-CoV-2 Outbreak Caused by Asymptomatic Traveler, China

Jingtao Liu, Jiaquan Huang, and Dandan XiangComments to Author 
Author affiliations: Hubei University of Medicine, Shiyan, China (J. Liu); Huazhong University of Science and Technology, Wuhan, China (J. Liu, J. Huang, D. Xiang); Tongji Hospital, Wuhan (J. Huang, D. Xiang)

Main Article

Figure

Timeline of exposure and connections between cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among persons in Heilongjiang Province, China. A0 returned from the United States on March 19, tested negative for SARS-CoV-2, and self-quarantined in her apartment and remained asymptomatic. However, SARS-CoV-2 serum IgM was negative and IgG was positive in later retests, indicating that A0 was previously infected with SARS-CoV-2 and likely was an asymptomatic carrier. B1.1, A0’s d

Figure. Timeline of exposure and connections between cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among persons in Heilongjiang Province, China. A0 returned from the United States on March 19, tested negative for SARS-CoV-2, and self-quarantined in her apartment and remained asymptomatic. However, SARS-CoV-2 serum IgM was negative and IgG was positive in later retests, indicating that A0 was previously infected with SARS-CoV-2 and likely was an asymptomatic carrier. B1.1, A0’s downstairs neighbor, likely became infected by using the elevator in the building after A0 had used it.

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Page created: June 26, 2020
Page updated: August 20, 2020
Page reviewed: August 20, 2020
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