[chimeracoder]

> You can get sick even from washing your teeth with tap water. Sick as in ruin your vacation, not sick as in really sick.

I mean, I'd call HAV "really sick". Even for people who clear the infection without assistance and no long-term complications, it's rather involved and goes far beyond simply "ruin your vacation".

[petre]

Not HAV but other stuff that's prevalent and they're quite immune to it while westeners are not. Of course you can also get HAV as well if you aren't careful.