Concern about Tapeworms or Intestinal Worms
I (female in my 20s) was at a fair the other day with my friend. There was a petting zoo and we pet and fed a lot of animals. At the end of the day, my friend tickled me, and I reflexively bit his forearm because he wouldn't stop. Right after biting, I realized that his forearms were still dirty from the animals because, although we washed our hands, we didn't wash our forearms. I quickly rinsed out my mouth with some water, but I'm still concerned about ingesting some microscopic worm eggs. I read that tapeworms can go into your brain, heart, and eyes, which is absolutely terrifying.
I know worms get transferred from feces to mouth, but I'm worried because some animals were walking around their own feces and then climbing up against the cage bars. And when petting the animals, we would lean our arms on the cage bars. And our forearms came in contact with the animals while petting them too.
I am not asking for medical advice. I'm just looking for any insight or information anyone might have about this. I'm not very knowledgeable about parasites or that sort of thing. I might bring this up to my doctor when I have my yearly physical if it's a real concern.