Dipyrandium

Dipyrandium is a genus of parasitic nematodes, belonging to the family Trichostrongylidae. The species within this genus are typically found in the digestive tracts of various mammals, including humans. They are characterized by their small size and the presence of two spicules, hence the name Dipyrandium.

Taxonomy

The genus Dipyrandium was first described by Railliet and Henry in 1915. It is classified under the family Trichostrongylidae, which is part of the order Strongylida. The taxonomy of Dipyrandium is complex and has been subject to numerous revisions.

Morphology

Dipyrandium species are small nematodes, typically measuring less than 1 cm in length. They are characterized by the presence of two spicules, which are used in mating. The females are usually larger than the males and have a vulva located near the middle of the body.

Life Cycle

The life cycle of Dipyrandium species involves a direct route of transmission, without the need for an intermediate host. The adult worms live in the host's digestive tract, where they lay eggs. These eggs are passed out with the host's feces and develop into larvae in the environment. The larvae are then ingested by a new host, where they mature into adult worms.

Pathogenicity

Dipyrandium species can cause disease in their hosts, typically manifesting as gastrointestinal symptoms such as diarrhea and abdominal pain. In severe cases, they can cause weight loss and anemia. The pathogenicity of Dipyrandium species is largely dependent on the number of worms present in the host.

Treatment and Control

Treatment for Dipyrandium infections typically involves the use of anthelmintic drugs, such as ivermectin or albendazole. Control measures include good hygiene practices and regular deworming of at-risk populations.

See Also

• Trichostrongylidae
• Nematode
• Parasitology