Quarantine duration

As I understand it, COVID-19 will manifest itself within 14 days of exposure to the coronavirus. First question: Is that correct?

Second question: Assuming one gets COVID-19,
[ul][li]How long does it take to run its course?[/li][li]How long after initial exposure until the person is no longer contagious?[/li][li]How long after a person recovers (e.g. fever breaks, etc.) until the person is no longer contagious?[/ul][/li]
If you have been practicing social distancing, hand-washing, etc., how long until you can be reasonably certain that you have not been exposed?


There is a bunch of factual information at the CDC site.