COVID-19 Scenario: Outbreak of COVID-19 in Korea ) scenario assumed by this study is uncertain.
From the additional explanations in the text, I understand that the idea is to track the movements of everyone and then use that information to trace back the contacts of confirmed infected patients. I stand by my position that the feasibility/ethical aspects should be discussed, at least from a social acceptance or a legal point of view, as the reader is left skeptical about whether it can actually be done with the current explanations. The authors bring up interesting legal considerations in their response to my comments, it would be nice to have them in the paper to show the reader under which conditions the authors' solution can be used.