Humans can get worms from dogs, especially roundworms, hookworms and tapeworms. Although it is actually a fungus, ringworm can also be passed from dogs to humans.
Roundworms and hookworms are the most common types of parasite spread from dogs to humans. Both are usually contracted after exposure to feces or contaminated soil. Tapeworm transmission is rare but possible. It usually requires an intermediate source, such as a flea.
Children and pregnant women are the most likely to be affected by parasites. Risk of transmission can be minimized by wearing shoes when walking through areas where dogs defecate and washing hands thoroughly after handling dogs or their feces.
Ringworm can be spread by contact. Affected dogs should be quarantined and handled carefully to prevent transmission.