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. 2020 May:94:154-155.
doi: 10.1016/j.ijid.2020.03.020. Epub 2020 Mar 14.

Estimation of the asymptomatic ratio of novel coronavirus infections (COVID-19)

Hiroshi Nishiura  1 , Tetsuro Kobayashi  2 , Takeshi Miyama  3 , Ayako Suzuki  2 , Sung-Mok Jung  2 , Katsuma Hayashi  2 , Ryo Kinoshita  2 , Yichi Yang  2 , Baoyin Yuan  2 , Andrei R Akhmetzhanov  2 , Natalie M Linton  2
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Estimation of the asymptomatic ratio of novel coronavirus infections (COVID-19)

Hiroshi Nishiura et al. Int J Infect Dis. 2020 May.
No abstract available

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Figures

Figure 1
Figure 1
Flow diagram of symptom screening and viral testing for passengers on chartered evacuation flights from Wuhan, China to Japan. The flow of Japanese residents evacuating from Wuhan and screened in Japan. A total of N passengers were evaluated, of whom a fraction p were symptomatic upon arrival. Among symptomatic and asymptomatic individuals, n and m persons, respectively, tested positive for the virus by RT-PCR.
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