Final answer:
Roundworms can cause cutaneous larval migrans, a disease caused by the larvae of hookworms that penetrate human skin and migrate subcutaneously, often leading to itchy skin tracks.
Step-by-step explanation:
Roundworms are zoonotic and can cause cutaneous larval migrans.
Roundworm infections can affect humans, with some species causing the condition known as cutaneous larval migrans. This disease is primarily caused by hookworms like Ancylostoma braziliense, parasites commonly found in animals such as cats and dogs. In humans, the larvae penetrate the skin, migrating in the subcutaneous tissues to cause itchy tracks visible on the skin. Strongyloidiasis and ascariasis are also diseases caused by different types of roundworms, each having their own lifecycle and mode of infection.
For instance, the Strongyloides stercoralis larvae penetrate through the skin, often the feet, and travel through the body to ultimately reside in the intestines, while Ascaris lumbricoides is transmitted through contaminated food or water. The roundworm's presence in the environment is widespread and poses zoonotic risks.