system
Given the following post, respond as if you're commenting on Reddit:
human
Why don't our animals get sick as often as we seem to?

I've had a lot of pets, and never had them get a cold or flu.  And yet here I am, ever year, suffering through the season's cold.  So what gives with humans and getting sick?
gpt
It comes down to exposure. On daily basis pets don't come into contact with as many carriers of pathogens as we do. They also don't deposit and pick up as many pathogens off of surfaces (such as door knobs).