Centers for Disease Control and Prevention
Centers for Disease Control: Parasites and Health: Trichuriasis
Get the complete picture of the Trichuris trichiura parasite. Information about the whipworm includes its geographical range, agents of infection, life cycle, symptoms, and treatment options.
Mayo Clinic
Mayo Clinic: Infectious Diesease: Trichinosis
Everything that you need to know about trichinosis and the worm that causes it will probably be available on this comprehensive site. Everything from the cause to prevention and lots of other topics are all presented.