Ever since my family and I moved to a new country, I notice we've been getting sick a lot. It's not life-threatening and they're common bugs, they're not even bad enough to keep me home from work. Does this mean our like, virus definitions are updating, or something? Or are we just going to be sicker more often in this place than in our home. We're in a way more populated place now and I use public transportation and we have kids going on playdates. So obviously, I'm getting more exposure. I'm just curious if the immune system eventually adapts to new places like this or if people in some areas just deal with more occurrences of disease.