Ascaris lumbricoides is the "large roundworm" of humans, growing to a length of up to 35 cm (14 in). It is one of several species of Ascaris. An ascarid nematode of the phylum Nematoda, it is the most common parasitic worm in humans.
What is the largest intestinal roundworm?
Adults: The roundworm Ascaris lumbricoides is the largest intestinal nematode infecting humans, with females averaging 30 cm in length (ranging from 20-49 cm) and measuring 3-6 mm in diameter. Males are smaller, ranging from 15-30 cm in length and 2-4 mm in diameter.
What is the largest intestinal roundworm infection humans?
Ascaris lumbricoides is the largest of the common nematodes (roundworms) that infect humans.
What is the most common type of worm in humans?
Pinworms are also called “threadworms.” They're the most common type of intestinal worm infection in the U.S., and one of the most common in the world.
What is the most common intestinal nematode of humans?
Pinworm is the most common helminth infection in the United States. Global estimates of strongyloidiasis prevalence vary widely, from 3-100 million infected; S. stercoralis is less common than the other major intestinal nematodes.
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