3. How long do you remain contagious if you have the virus. 2 weeks? 1 month?
So, what I've been able to find says the following:
Let us say you are exposed to the virus.
If you are infected, you become contagious within 24 to 48 hours. This virus does not seem to lie dormant for significant time.
You may then be contagious for up to two weeks without showing symptoms.
If you do not show symptoms in that period the likelihood is that you were not infected at all, or were infected and had such a mild case that no symptoms were noted. In any case, at that point you are unlikely to be able to infect anyone.
If you do show symptoms, I don't know how long after they abate you are considered "safe".