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The adult forms are essentially parasites of humans, causing soil-transmitted helminthiasis (STH), but also infect domesticated mammals. The juveniles are the infective forms and they undergo tissue-migratory stages during which they invade vital organs such as lungs and liver. Thus the disease manifestations can be both local and systemic.
The World Health Organization estimates that globally more than 1.5 billion people (24% of the total population) have a soil-transmitted helminth infection. [2] Over 270 million preschool-age children and over 600 million school-age children live in areas where these parasites are intensively transmitted, and need treatment and preventive ...
Another source estimated a much higher figure of 3.5 billion infected with one or more soil-transmitted helminths. [ 65 ] [ 66 ] In 2014, only 148 people were reported to have dracunculiasis because of a successful eradication campaign for that particular helminth, which is easier to eradicate than other helminths as it is transmitted only by ...
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.
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 ...
About 0.8 to 1.2 billion people globally have ascariasis, with the most heavily affected populations being in sub-Saharan Africa, Latin America, and Asia. [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]
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.
Necator americanus is a species of hookworm (a type of helminth) commonly known as the New World hookworm.Like other hookworms, it is a member of the phylum Nematoda.It is an obligatory parasitic nematode that lives in the small intestine of human hosts. [1]