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. 2020 Jul;26(7):1596-1600.
doi: 10.3201/eid2607.200994. Epub 2020 Jun 21.

Severe Acute Respiratory Syndrome Coronavirus 2 Infection among Returnees to Japan from Wuhan, China, 2020

Yuzo Arima, Tomoe Shimada, Motoi Suzuki, Tadaki Suzuki, Yusuke Kobayashi, Yuuki Tsuchihashi, Haruna Nakamura, Kaoru Matsumoto, Asuka Takeda, Keisuke Kadokura, Tetsuro Sato, Yuichiro Yahata, Noriko Nakajima, Minoru Tobiume, Ikuyo Takayama, Tsutomu Kageyama, Shinji Saito, Naganori Nao, Tamano Matsui, Tomimasa Sunagawa, Hideki Hasegawa, Makoto Ohnishi, Takaji Wakita

Severe Acute Respiratory Syndrome Coronavirus 2 Infection among Returnees to Japan from Wuhan, China, 2020

Yuzo Arima et al. Emerg Infect Dis. 2020 Jul.

Abstract

In early 2020, Japan repatriated 566 nationals from China. Universal laboratory testing and 14-day monitoring of returnees detected 12 cases of severe acute respiratory syndrome coronavirus 2 infection; initial screening results were negative for 5. Common outcomes were remaining asymptomatic (n = 4) and pneumonia (n = 6). Overall, screening performed poorly.

Keywords: 2019 novel coronavirus disease; Asymptomatic infections; COVID-19; SARS-CoV-2; bias; coronavirus disease; pneumonia; prevalence; quarantine; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

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Figures

Figure
Figure
Results of testing 566 Japanese returnees from Wuhan, China, for severe acute respiratory syndrome coronavirus 2 by real-time reverse transcription PCR, January–February 2020. *Two persons were sampled on day 3, when they provided informed consent.
See this image and copyright information in PMC

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