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Ancylostoma duodenale is a species of the roundworm genus Ancylostoma. It is a parasitic nematode worm and commonly known as the Old World hookworm. It lives in the small intestine especially the jejunum [ citation needed ] of definitive hosts, generally humans, [ 2 ] : 307–308 [ 3 ] where it is able to mate and mature.
Hookworm infection is found in many parts of the world, [1] and is common in areas with poor access to adequate water, sanitation, and hygiene. In humans, infections are caused by two main species of roundworm, belonging to the genera Ancylostoma and Necator. In other animals the main parasites are species of Ancylostoma.
Ancylostoma braziliense mouthparts. Hookworm infections in humans include ancylostomiasis and necatoriasis. Ancylostomiasis is caused by Ancylostoma duodenale, which is the more common type found in the Middle East, North Africa, India, and (formerly) in southern Europe.
Latin name (sorted) Habitat in definite host Diagnostic Sample Prevalence Mode of transmission Ancylostomiasis/Hookworm: Ancylostoma duodenale, Necator americanus: lungs, small intestine, blood stool common in tropical, warm, moist climates penetration of skin by L3 larva Angiostrongyliasis: Angiostrongylus: intestine stool
Since N. americanus and Ancylostoma duodenale (also known as Old World hookworm) are the two species of hookworms that most commonly infest humans, they are usually dealt with under the collective heading of "hookworm infection". They differ most obviously in geographical distribution, structure of mouthparts, and relative size. [2]
Ancylostomiasis is a hookworm disease caused by infection with Ancylostoma hookworms.The name is derived from Greek ancylos αγκύλος "crooked, bent" and stoma στόμα "mouth".
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The hookworms, Necator americanus and Ancylostoma duodenale, hatch as first-stage juveniles within the soil and develop to an infective third-stage juvenile.Infection occurs by direct penetration through the skin of the host.