Healthy? Don't know about that. I used to be, but after a decade or so of a sedentary lifestyle I'm quite in the overweight range these days and being middle-aged doesn't help either. I probably just encountered a bacteria that wasn't particularly resistant to antibiotics, unlike the critters you encountered.

Although I do worry that antibiotics are handed out a little too readily. If it doesn't kill 'em, it makes 'em stronger.

Yes, science is great, especially in a world where magic just doesn't work.