Standley C J, Stothard J R
Department of Ecology & Evolutionary Biology, Princeton University, Princeton, New Jersey 08544, USA.
J Parasitol. 2012 Oct;98(5):1049-51. doi: 10.1645/GE-3091.1. Epub 2012 Mar 26.
While Schistosoma rodhaini is typically considered a parasite of small mammals and is very scantly distributed in the Lake Victoria basin, it is known to hybridize with the more widespread Schistosoma mansoni, the causative agent of intestinal schistosomiasis. As part of broader parasitological and malacological surveys for S. mansoni across Lake Victoria, schistosome cercariae were harvested from a field-caught Biomphalaria choanomphala taken on Ngamba Island Chimpanzee Sanctuary, Uganda. Upon DNA barcoding, these cercariae were found to be a mixture of both S. rodhaini and S. mansoni, with further phylogenetic analysis revealing a hitherto unknown sub-lineage within S. rodhaini. Despite repeated sampling for eggs and miracidia from both chimpanzees and staff on Ngamba Island Sanctuary, detection of S. rodhaini within local definitive hosts awaits additional efforts, which should be mindful of a potential host role of spotted-necked otters.
虽然罗氏血吸虫通常被认为是小型哺乳动物的寄生虫，在维多利亚湖流域分布极少，但已知它会与更广泛分布的曼氏血吸虫杂交，曼氏血吸虫是肠道血吸虫病的病原体。作为对维多利亚湖曼氏血吸虫进行更广泛寄生虫学和贝类学调查的一部分，从乌干达恩甘巴岛黑猩猩保护区捕获的野外双脐螺中采集了血吸虫尾蚴。经DNA条形码分析，发现这些尾蚴是罗氏血吸虫和曼氏血吸虫的混合体，进一步的系统发育分析揭示了罗氏血吸虫内一个迄今未知的亚谱系。尽管在恩甘巴岛保护区对黑猩猩和工作人员反复进行了虫卵和毛蚴采样，但在当地终末宿主中检测到罗氏血吸虫仍需进一步努力，应注意斑颈水獭可能的宿主作用。
