Ascaris
These guys are another type of roundworm you can catch from the beach or the soil more generally. Ascaris infections are actually the most common soil-transmitted parasites in humans, with up to a billion people worldwide currently thought to carry them. People will usually catch these worms from ingesting or touching soil or water contaminated by another person’s infected feces. Thankfully, Ascaris infections are relatively uncommon in the U.S.
