There is some research on the spread of the virus. As reported in the article I have linked below it has not yet had a peer review however it looks as though the conclusions are at least logical. It more or less means that movement should continue to be restricted until about 10 days or more after the last case is detected of persons with symptoms.

https://www.statnews.com/2020/03/09...ly-not-infectious-after-recovery-begins/

Peter

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