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.
University of California
Ucmp: Nematoda Roundworms
General info from the University of California on the the physical characteristics and population ecology of roundworms.
Stanford University
Enterobius Vermicularis
Get the facts on the pinworm parasite. Everything from the history of discovery to public health strategies is available. A life cycle diagram provides a good overview of the problem of disease transmission.
Regents of the University of Michigan
Animal Diversity Web: Phylum Nematoda
The Animal Diversity Web offers a general introduction to the roundworm and some of its physical characteristics.
Centers for Disease Control and Prevention
Centers for Disease Control: Parasites and Health: Ascariasis
For the complete picture of the roundworm Ascariasis, check out this thorough resource. It investigates geographic range, agents of infection, symptoms and treatment options.
University of Nebraska
Unl: Reproductive Systems of Nematodes
This article from the University of Nebraska-Lincoln provides general information on the structure and diversity of the male and female reproductive systems of nematodes.
Other
Nematoda General
Information on nematodes in general, including their general characteristics and their effect on the environment.
Biology 4 kids
Biology4 Kids: Nematodes Worms That Are Round
Find out what the story is behind the microscopic nematodes, also known as round worms.