I get a mild disgust/nausea/skin-crawl reaction. I lean towards evolutionary theory: your lizard brain is telling you "don't touch/eat this parasite-infested it

I get a mild disgust/nausea/skin-crawl reaction. I lean towards evolutionary theory: your lizard brain is telling you "don't touch/eat this parasite-infested item". The worst trigger for me was an image was a (photoshopped) picture of skin with holes, and some had maggots in them.