There are several types of worms that are common in cats
. Hookworms, whipworms, and roundworms are the most damaging (for cats
). Tapeworms are the only ones that come from fleas. The only way any of these can be transmitted to humans is through the ingestion of cat feces, or in the case of tapeworms, feces or fleas. Even so, they rarely cause any damage in humans. The greater concern would be coccidia and giardia, which are not worms, but internal parasites.