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Schistosoma is a genus of trematodes, commonly known as blood flukes.They are parasitic flatworms responsible for a highly significant group of infections in humans termed schistosomiasis, which is considered by the World Health Organization to be the second-most socioeconomically devastating parasitic disease (after malaria), with hundreds of millions infected worldwide.
Clinical symptoms are caused by the eggs. As the leading cause of schistosomiasis in the world, it is the most prevalent parasite in humans. It is classified as a neglected tropical disease. As of 2021, the World Health Organization reports that 251.4 million people have schistosomiasis and most of it is due to S. mansoni. [1]
As of May 2024, the 1,225 Texas municipalities [3] [a] include 971 cities, 231 towns, and 23 villages. These designations are determined by United States Census Bureau requirements based on state statutes and may not match a municipality's self-reported designation. [4] The types of municipalities in Texas are defined in the Local Government ...
Schistosomiasis is also common among women, who may have greater exposure through daily chores that involve water, such as washing clothes and fetching water. [10] Other high-risk groups include farmers, fishermen, and people using unclean water during daily living. [5] Schistosomiasis belongs to the group of helminth infections. [11]
Vector map from BlankMap-World6, compact.svg by Canuckguy et al. Data from Mortality and Burden of Disease estimates for WHO member states in 2002 (2009-11-07) Combined by Lokal_Profil; Author: Lokal_Profil: Permission (Reusing this file)
Schistosoma japonicum is an important parasite and one of the major infectious agents of schistosomiasis.This parasite has a very wide host range, infecting at least 31 species of wild mammals, including nine carnivores, 16 rodents, one primate (human), two insectivores and three artiodactyls and therefore it can be considered a true zoonosis.
The genera most commonly associated with swimmer's itch in humans are Trichobilharzia [4] and Gigantobilharzia. It can also be caused by schistosome parasites of non-avian vertebrates, such as Schistosomatium douthitti, which infects snails and rodents. Other taxa reported to cause the reaction include Bilharziella polonica and Schistosoma bovis.
The following groupings/assumptions were made: France includes the overseas departments as well as overseas collectivities. The United Kingdom includes the Crown dependencies as well as the overseas territories.