Nuamtanong S, Waikagul J, Anantaphruti M T
Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Southeast Asian J Trop Med Public Health. 1998 Mar;29(1):144-7.
To investigate the distribution of gnathostome worms in central Thailand, the infective larvae of Gnathostoma spp were examined from the flesh and liver of swamp eels, Fluta alba. Seven hundred and eighty-eight eels were purchased from markets in 11 provinces; Ang Thong (30), Ayutthaya (36), Chachoengsao (30), Lop Buri (30), Nakhon Nayok (437), Pathum Thani (30), Prachin Buri (48), Ratchaburi (53), Saraburi (30), Samut Prakan (30) and Suphan Buri (34). The highest rate of gnathostome infection was observed in swamp eels from Nakhon Nayok (68.7%). The infection rates in Ayutthaya, Ang Thong, Prachin Buri, Ratchaburi, Saraburi and Lop Buri were 33.3%, 26.7%, 25.0%, 18.9%, 13.3% and 10.0% respectively. Gnathostome larvae were not found in swamp eels from Chachoengsao, Pathum Thani, Samut Prakan and Suphan Buri. Among the 9,573 larvae recovered, almost all were the advanced third stage larvae of G. spinigerum, except one larva from Nakhon Nayok and two larvae from Ratchaburi which were identified as the advanced third stage larvae of G. vietnamicum and G. hispidum respectively. This study is the first report of swamp eels as natural intermediate hosts of G. vietnamicum and G. hispidum.
为调查泰国中部颚口线虫的分布情况，从白鳝（Monopterus albus）的肌肉和肝脏中检查颚口线虫属的感染性幼虫。从11个省份的市场购买了788条白鳝；分别来自红统府（30条）、大城府（36条）、北柳府（30条）、华富里府（30条）、那空那育府（437条）、巴吞他尼府（30条）、巴真府（48条）、叻丕府（53条）、沙拉武里府（30条）、北榄府（30条）和素攀武里府（34条）。在那空那育府的白鳝中观察到最高的颚口线虫感染率（68.7%）。在大城府、红统府、巴真府、叻丕府、沙拉武里府和华富里府的感染率分别为33.3%、26.7%、25.0%、18.9%、13.3%和10.0%。在北柳府、巴吞他尼府、北榄府和素攀武里府的白鳝中未发现颚口线虫幼虫。在回收的9573条幼虫中，几乎所有都是棘颚口线虫的晚期第三期幼虫，除了那空那育府的1条幼虫和叻丕府的2条幼虫，它们分别被鉴定为越南颚口线虫和刚刺颚口线虫的晚期第三期幼虫。本研究首次报道白鳝是越南颚口线虫和刚刺颚口线虫的天然中间宿主。
