It's sad, sad humans who don't touch the grass on their own. Why blame the pets?I Remember going to “the vets” for work experience.
We learned about how people with pet cats have worms in their body’s, “when you have a pet cat that goes outside, it will usually lay in the grass for some part of the day (grass carries worm eggs) the owner then pets the cat and often forgets to wash their hands, then the owner eats food (when touching the food the worm eggs transfer to the food) and in pops the worm eggs, in a couple of days they will hatch and spread through the owners body. https://www.cbsnews.com/pictures/10-scary-diseases-pets-give-people/8/