Large SARS-CoV-2 outbreak caused by asymptomatic traveler, China

Liu J.,
Huang J.,
Xiang D.
Document Type
Source Title
Emerging Infectious Diseases
Centers for Disease Control and Prevention (CDC)


An asymptomatic person infected with severe acute respiratory syndrome coronavirus 2 returned to Heilongjiang Province, China, after international travel. The traveler's neighbor became infected and generated a cluster of ≥71 cases, including cases in 2 hospitals. Genome sequences of the virus were distinct from viral genomes previously circulating in China. © 2020 Centers for Disease Control and Prevention (CDC). All rights reserved.

Migration angle
Region/Country (by coverage)
Index Keywords

adult; article; China; female; human; major clinical study; male; nonhuman; Severe acute respiratory syndrome coronavirus 2; travel; virus genome; aged; asymptomatic infection; Betacoronavirus; China; communicable disease; Coronavirus infection; epidemic; middle aged; pandemic; travel; virology; virus pneumonia; Adult; Aged; Asymptomatic Infections; Betacoronavirus; China; Communicable Diseases, Imported; Coronavirus Infections; Disease Outbreaks; Female; Humans; Male; Middle Aged; Pandemics; Pneumonia, Viral; Travel