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letter
. 2020 Apr 21;37:101688. doi: 10.1016/j.tmaid.2020.101688

Fig. 1.

Fig. 1

Step by step to estimate PAC-COVID-19 and the expected spread.

A. PAC-COVID-19: Number of presumptive asymptomatic COVID-19 carriers’.

To determine repatriate' count estimate. Step 2.0: Step 1.0. * Step 2; Step 2.1: Step 1.1. * Step 2; Step 2.2: Step 1.2. * Step 2.

Example to estimate person-to-person spreading. For a mean R0, the expected'person-to-person spreading has three possible options: Step 2.0. * Step 3.1, Step 2.1. * Step 3.1, and, Step 2.0. * Step 3.2.

B. PAC-COVID-19 adjusted to R0: Test to a repatriation operation from Wuhan.

The number of suspected carriers is obtained by multiplying the estimated proportion of suspected carriers (%) by the number of returnees from Wuhan. The estimated number of travelers to whom COVID-19 can be propagated is obtained by multiplying the number of suspected carriers by a specific R0.