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The soil-transmitted helminths (also called geohelminths) are a group of intestinal parasites belonging to the phylum Nematoda that are transmitted primarily through contaminated soil. They are so called because they have a direct life cycle which requires no intermediate hosts or vectors , and the parasitic infection occurs through faecal ...
Soil-transmitted helminths can also cause loss of appetite. [2] These nutritional "knock on" effects of STH can have a significant impact on the mental and physical development of children. In endemic countries, communities remain suppressed due to malnourishment, cognitive disability, and physical weaknesses as a result of heavy infections ...
The soil-transmitted helminths (A. lumbricoides, T. trichiura, N. americanus, A. duodenale), schistosomes, and filarial worms collectively infect more than a quarter of the human population worldwide at any one time, far surpassing HIV and malaria together. [35] [37] Schistosomiasis is the second most prevalent parasitic disease of humans after ...
The prevalence of intestinal parasites is the highest among children that are living in the poorest communities in developing nations. [1] The most common causes of intestinal parasites are through consumption of contaminated water, infected soil, inadequate sanitation and hygiene, and improper hygiene. [3]
Soil-transmitted helminthiasis is the most prevalent neglected tropical disease. [76] The four major worm species responsible for soil-transmitted helminthiasis are Ascaris , Trichuris , the hookworms Necator americanus and Ancylostoma duodenale, and Strongyloides stercoralis. [77] There are 1.5 billion people currently infected. [77]
[1] [10] [11] This makes ascariasis the most common form of soil-transmitted helminthiasis. [10] As of 2010 it caused about 2,700 deaths a year, down from 3,400 in 1990. [12] Another type of Ascaris infects pigs. [1] Ascariasis is classified as a neglected tropical disease. [6]
Parasitic worms, also known as helminths, [1] are a polyphyletic group of large macroparasites; adults can generally be seen with the naked eye. Many are intestinal worms that are soil-transmitted and infect the gastrointestinal tract. Other parasitic worms such as schistosomes reside in blood vessels.
Hookworm infection is a soil-transmitted helminthiasis ... This can give rise to seasonal fluctuations in infection prevalence and intensity (apart from normal ...