Le T X, Rojekittikhun W
Department of Parasitology, University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam.
Southeast Asian J Trop Med Public Health. 2000 Mar;31(1):133-7.
To investigate the distribution of Gnathostoma spp in Ho Chi Minh City (HCM city), 1,081 eels were purchased from a local market twice a month from March 1998 to February 1999. Infective larvae of Gnathostoma spp detected from the flesh and liver of eels by the press preparation technique were examined and identified. Three hundred and fifty advanced third-stage larvae were recovered from liver, none from the flesh. The average rate of infection was 0.11; a high rate of infection was found from August to November and a low rate of infection from February to May. The average number of larvae/eel was 2.9; the greatest number of larvae/eel was in January whereas the lowest was in March and April. There was a marked decrease in both prevalence and intensity of infection from February to May, followed by a rise from June. The finding suggests that in HCM city, the infection rate abruptly decreases soon after the end of the rainy season and starts to rise when the rain comes and reaches its peak at the end of the rainy season. All recovered larvae were identified as G. spinigerum.
为调查胡志明市颚口线虫属的分布情况，于1998年3月至1999年2月每月两次从当地市场购买1081条鳗鱼。通过压片法从鳗鱼的肉和肝脏中检测到的颚口线虫属感染性幼虫进行检查和鉴定。从肝脏中回收了350条晚期第三期幼虫，肉中未检出。平均感染率为0.11；8月至11月感染率较高，2月至5月感染率较低。每条鳗鱼的幼虫平均数量为2.9条；每条鳗鱼幼虫数量最多的是1月，最少的是3月和4月。2月至5月感染率和感染强度均显著下降，随后6月开始上升。这一发现表明，在胡志明市，雨季结束后感染率迅速下降，雨季来临时开始上升，并在雨季结束时达到峰值。所有回收的幼虫均鉴定为棘颚口线虫。
