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Schistosoma malayensis

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A schistosome species first described in Peninsular Malaysia, and causes schistosomiasis in van Müller's rat (Rattus muelleri) although human infestations were also reported


Schistosoma is a genus belonging to class Trematoda of phylum Platyhelminthes. Members of this genus are commonly called schistosomes or blood flukes. One of the distinctive features of schistosomes is their sexual dimorphism such that the males are females differ in size or length and the males have a gynecophore to carry their female mate. The genus includes species such as S. japonicum, S. spindale, S. haematobium, S. indicum, S. intercalatum, S. malayensis, S. mansoni, and S. mekongi.

S. malayensis is a member of the Schistosoma japonicum complex described from the rodent Rattus muelleri in Peninsular Malaysia (thus, the name). The aquatic snail Robertsiella kaporensis and two other species of this genus were found to be naturally infected. S. malayensis is considered most closely related to Schistosoma mekongi. Human infections, based on serological evidence, were reported among the indigenous people of central peninsular Malaysia.

The intermediate hosts of S. malayensis are the aquatic snails, such as Robertsiella kaporenisis.

Scientific classification:

See also: