No you don't, there is 27 days incubation factor which means 27 days before the ...

		bluGill on Feb 26, 2020 \| parent \| context \| favorite \| on: Tokyo Olympics “looking at a cancellation” if coro... No you don't, there is 27 days incubation factor which means 27 days before the initial outbreak for things to spread and no possible way to do anything about that. Then you have whatever time for doctors to identify that this is something new and a big deal, again time that things can spread without your ability to control it.

The 27 days incubation is the maximum observed time. The median time is about 8 days.