Memes.
Yeah. Education.
many parasites offer beneficial responses. E.g the current epidemic of asthma, excma, allergies, irritable bowel etc may be due to our clean environment and not enough parasites and bugs. I presume this is due to ouir immune system attacking the bugs and not ourselves. There are several trials of parasite based treatments such as hook worms
e.g. see http://www.asthmahookworm.com/
What about… LOVE? (violins swell)
No, I’m just kidding. Give me a nice, predictable dose of typhoid any day.