[@Aqutanama]

(On my phone so bear with me)

From the GM's 1st post it said that the infection was heading north. So, yes it has crossed the border. Now I will concede that I didn't think about boats. However travel by plane is unlikely but plausible due to short incubation period of the infection.

That said. Organs and such could spread the infection as well. But the GM didn't post anything about boats, planes, or organs while I agree that it is probable that all these methods are happening. So I was working strictly off the info the GM provided. 

And, I (my character) would assume the worst case scenario, which is, we are behind the infection and any direction we try and travel could and probably would have us encounter the infected. 

Also. Barricading in and try to survive is suicide. Either we draw a horde that is unfightable. Or we run out of supplies. It would only be safe to salvage supplies for the next 10-20 hours, after that there are too few targets to distract Z and every trip after that would draw more and more Z to us until we could not leave and either died of starvation or the barricades where destroyed. Or, if we did manage to hold the gates long enough, we would drain all the supplies around us. Being on the road and only stopping for a few days at most, we could salvage as we go and have a Much much large area to live off of.

As for traveling I would assume there is a horde over the next hill always. But if we scout and get our hands on a vehicle it would be safe enough (probably).