MetaPathogen.com/Ascaris lumbricoides

 

abstract image
abstract image

Please help keeping these websites open for everybody as long as possible

 

Human roundworm, Ascaris lumbricoides

Download this page in pdf format (can be old)
Print

Ascaris lumbricoides taxonomy

cellular organisms - Eukaryota - Fungi/Metazoa group - Metazoa - Eumetazoa - Bilateria - Pseudocoelomata - Nematoda - Chromadorea - Ascaridida - Ascaridoidea - Ascarididae - Ascaris - Ascaris lumbricoides

Ascaris spp. (ascariasis) life cycle

Brief facts

 

List of human helminths at MetaPathogen (new page)
(~12 human parasitic worms, transmission, symptoms, references)

 

Back to top

Nemose

Developmental stages (life cycle)

Life Cycle Stages

Roundworms are dioecious, with male and female organs in separate individuals, and have a direct life cycle (no intermediate hosts). They mate in host's small intestine and the females produce eggs.

Back to top
Nemose

Treatment

Active agent Formulation Advantages Disadvantages
Albendazole Tablets (200 and 400 mg); oral suspension Single dose of 400 mg is effective; ovicidal; poorly absorbed by the host - acts directly on parasites; similarly effective against pinworm and somewhat effective against other helminths fetal toxicity was reported in animals
Mebendazole Tablets (200 and 500 mg); oral suspension Single dose of 500 mg is effective; ovicidal; poorly absorbed by the host - acts directly on parasites; effective against other helminths Fetal toxicity was reported in animals
Levamisole Tablets (40 mg) Single dose; highly effective against ascariasis Not that effective against other helminths; not ovicidal; contraindicated during first trimester of pregnancy
Pyrantel pamoate Tablets (250 mg) Also highly effective against pinworm Not that effective against other helminths; not ovicidal; containdicated during first trimester of pregnancy
Ivermectin Tablets, suspensions Broad spectrum antiparasitic; convenient; few side effects Expensive; lack of sufficient safety data
Back to top Nemose

 

ascaris cross section Back to top Nemose

References

Websites

Back to top Nemose