Dictionary > Necatoriasis

Necatoriasis

Definition
noun
(parasitology) Infestation with Necator hookworms
Supplement
Necatoriasis is an infestation (or infection) of Necator species. In humans, the causative agent of necatoriasis is Necator americanus (also known as the New World hookworm). It is a hookworm infesting humans as well as other animals (e.g. cats and dogs). Humans, though, are its definitive host. This hookworm belongs to group of parasitic worms referred to as helminths. Thus, necatoriasis is considered as a type of helminthiasis (i.e. worm infestation). Another Necator species is the Necator suillus which is a hookworm found in pigs.
Morphologically, Necator hookworms are similar to Ancylostoma species. Both of them are hook-shaped although Necator species is smaller and has a more defined hook shape.1 Both Necator and Ancylotstoma hookworms attach to the intestinal lining of their host to feed on blood. Thus, necatoriasis, similar to ancylostomiasis (Ancylostoma hookworm infestation), could result in hookworm anaemia. Nevertheless, the anaemia from necatoriasis is less severe than that from ancylostomiasis.
Necatoriasis is common in moist tropics and subtropics. It occurs in Africa, India, Asia, China, and Central America.
See also:

Reference(s):

1 Ancylostoma/Necator. Retrieved from ://parasite.org.au/para-site/text/ancylostoma-necator-text.html.


You will also like...

Evolution of Life - Ancient Earth
Evolution of Life – Ancient Earth

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

Non-Mendelian Inheritance
Non-Mendelian Inheritance

In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..

Fossil trilobite imprint in the sediment
Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Crossing Over and Genetic Diversity
Inheritance and Probability

Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

Freshwater aquatic plankton
Freshwater Communities & Plankton

Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

Muscle
Muscle

Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..