Blair, David, van Herwerden, Lynne, Hirai, Hirohisa, Taguchi, Takahiro, Habe, Shigehisa, Hirata, Mizuki, Lai, Karen, Upatham, Suchart, and Agatsuma, Takeshi (1997) Relationships between Schistosoma malayensis and other Asian schistosomes deduced from DNA sequences. Molecular and Biochemical Parasitology, 85 (2). pp. 259-263.

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Abstract

At least three Schistosoma species can infect humans in South-East Asia. The most widespread of these is S. japonicum Katsurada, 1904 which may represent a species complex and occurs in many countries including China, Japan and the Philippines. The second species is S. mekongi Voge, Bruckner and Bruce, 1978 which is endemic to a small area near the junction of Laos, Cambodia and Thailand. Most recently described is S. malayensis Greer, Ow-Yang and Yong, 1988 from a restricted area of peninsular Malaysia. This is primarily a parasite of rats but has also been found in people Davis, on the basis of snail intermediate host phylogeny and biogeography, proposed that S. malayensis and S. mekongi are sister taxa relative to S. japonicum. The three studies on allozymes among these taxa also support this hypothesis.

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