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Hookworm life cycle. The host is infected by the larvae, not by the eggs, and the usual route is through the skin. Hookworm larvae need warm, moist soil, above 18 °C, in order to hatch. They will die if exposed to direct sunlight or if they become dried out. Necator larvae can survive at higher temperatures than Ancylostoma larvae. [citation ...
Ancylostoma caninum is a species of nematode known as a hookworm, which principally infects the small intestine of dogs. [1] [2] [3] The result of A. caninum infection ranges from asymptomatic cases to death of the dog; better nourishment, increasing age, prior A. caninum exposure, or vaccination are all linked to improved survival.
Hookworm life cycle. The hookworm thrives in warm soil where temperatures are over 18 °C (64 °F). They exist primarily in sandy or loamy soil and cannot live in clay or muck. Rainfall averages must be more than 1,000 mm (39 in) a year for them to survive. Only if these conditions exist can the eggs hatch.
Soil-transmitted helminthiasis is a collective name for the diseases caused by ascaris, whipworm and hookworms in humans. It includes species-specific diseases such as [citation needed] Ascariasis, which is caused by Ascaris lumbricoides; Hookworm diseases (ancylostomiasis and necatoriasis), which are caused by Necator americanus and ...
Humans are false hosts for the canine roundworm Toxocara canis and the canine hookworm (Ancylostoma caninum), i.e. the larvae damage infected organs but do not develop into adult worms. Both are the most important zoonotic agents among canine nematodes in Central Europe.
This same trait makes A. ceylanicum a uniquely useful hookworm, since it can be studied in the laboratory while infecting golden hamsters, unlike most or all strains of N. americanus or A. duodenale, and thus can also be used as a test organism for possible drugs or vaccines aimed at preventing human infections.
The larvae migrate from the lungs up the windpipe to be swallowed and carried back down to the intestine. If humans come into contact with larvae of dog hookworms or cat hookworms, or of certain other hookworms that do not infect humans, the larvae may penetrate the skin. Sometimes, the larvae are unable to complete their migratory cycle in humans.
Cutaneous larva migrans (abbreviated CLM) is a skin disease in humans, caused by the larvae of various nematode parasites of the hookworm family (Ancylostomatidae).The parasites live in the intestines of dogs, cats, and wild animals; they should not be confused with other members of the hookworm family for which humans are definitive hosts, namely Ancylostoma duodenale and Necator americanus.