Why would it be a conspiracy? There are lots of nasty bugs out there that could do damage, it just needs the right circumstances. Think what happens to someone when their immune system is compromised. We're damn lucky in this country to be well nourished, have clean water and access to good healthcare.

It often gives me pause, that the most important factor that has helped humans live longer is not improvements in medical technology, it's basic hygiene. And basic hygiene can help a lot with avoiding this too.