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Schistosomiasis, also known as snail fever, bilharzia, and Katayama fever [1] [2] [9] is a disease caused by parasitic flatworms called schistosomes. [5] It affects the urinary tract or the intestines . [ 5 ]
The definitive host is unknown and the intermediate host is the snail Tricula bollingi. This species is known to use snails of the family Pomatiopsidae as hosts. [21] S. incognitum appears to be basal in this genus. It may be more closely related to the African-Indian species than to the Southeast Asian group. This species uses pulmonate snails ...
In water, the eggs hatch to become miracidia, which penetrate the freshwater snail intermediate host. [5] S. intercalatum has two major strains, each with its own preferred bulinid host. The Zaire strain will use Bulinus africanus, while the Lower Guinea strain will use the extremely common B. forskalii as its intermediate host. [6]
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 life cycle of schistosomes includes two hosts: humans as definitive hosts, where the parasite undergoes sexual reproduction, and snails as intermediate hosts, where a series of asexual reproduction takes place. S. mansoni is transmitted through water, where freshwater snails of the genus Biomphalaria act as intermediate hosts. The larvae ...
It can serve as vectors for two serious human diseases: the schistosomiasis blood fluke parasite, and the paragonimus lung fluke parasites. Oncomelania hupensis is the unique intermediate host of Schistosoma japonicum, [7] [13] which causes schistosomiasis endemic in the Far East, and especially in mainland China.
Biomphalaria glabrata is an intermediate snail host for the trematode Schistosoma mansoni, which is one of the main schistosomes that infect humans. [2] This snail is a medically important pest, [3] because of transferring the disease intestinal schistosomiasis, the most widespread of all types of schistosomiasis.
Biomphalaria straminea is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. This snail is a medically important pest, [1] because an intermediate host for the parasite Schistosoma mansoni and a vector of schistosomiasis. [2]