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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 are essentially intestinal parasites and their eggs which are liberated along with the faeces of infected persons into the soil. Ascaris and hookworm eggs become infective as they develop into larvae in soil. Infection occurs when vegetables and fruits, contaminated with soil-infested eggs, are consumed; or when hands ...
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 ...
Some types of helminths and protozoa are classified as intestinal parasites that cause infection—those that reside in the intestines. These infections can damage or sicken the host (humans or other animals). If the intestinal parasite infection is caused by helminths, the infection is called helminthiasis.
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.
WHO have since 2001 had a strategy for control of soil-transmitted helminths, including whipworms. This strategy entails treating at-risk individuals in the endemic areas. Risk groups for whipworm infections are children at preschool and school-aged children, people with specific high-risk jobs, women in reproductive and pregnant and ...
Despite under-funding, treatment and prevention of many neglected diseases is cost-effective. The cost of treating a child for infection of soil-transmitted helminths and schistosomes (some of the main causes of neglected diseases) is less than US$0.50 per year when administered as part of school-based mass deworming by Deworm the World.
The Philippines Soil Transmitted Helminth Control Program is run by the Department of Health and implemented by the Department of Education in the Philippines. [54] It is a partnership with the WHO , University of the Philippines Manila , UNICEF , World Vision International , Feed the Children , Helen Keller International , Plan International ...