According to Islam,"Allah's Apostle said, 'If a fly falls in your drink, dip all of it into the cup and then throw it away, for in one of its wings there is a disease and in the other there is healing, an antidote or treatment for that disease.'"
How is that even remotely relevant?
Actually, there is a lot of truth in that. The one reason our bodies can fight off disease is by encounter it, it's a learning machine. So it's not wrong. Many who work with disease in the past developed more immunities than others.
Yeah, I know. I'm just wondering why he brought that particular thing up in this thread.