Sachs R, Kern P, Voelker J
Tropenmed Parasitol. 1983 Jun;34(2):105-8.
During 1981, three cases of pulmonary paragonimiasis were diagnosed and successfully treated at the Albert Schweitzer Hospital, Lambarene, Gabon. Circumstances prevented our receiving eggs for identification of the lung fluke species involved. The history revealed that all the patients originated from the same small village Mitoné, some 10 km north of Lambarene. Extensive testing in the region failed to reveal further cases. Our efforts, therefore, were concentrated on the study of the intermediate crustacean hosts responsible for the human infections. We examined 90 fresh-water crabs of the species Sudanonautes aubryi and S. africanus collected from small creeks located close to the village of the patients. 14 per cent of the former species and 8 per cent of the latter contained freely moving, non-encysted metacercariae resembling those of Paragonimus uterobilateralis. A domestic cat was subsequently infected with these metacercariae. During autopsy of the cat some 260 days later, 2 adult lung flukes were recovered and clearly identified as P. uterobilateralis, confirming the diagnosis on the larval metacercariae. These findings support the surmise that the human cases of paragonimiasis in the same area could be attributed to an infection with P. uterobilateralis.
1981年期间，加蓬兰巴雷内的阿尔贝特·施韦泽医院诊断并成功治疗了3例肺吸虫病。由于一些情况，我们未能收到用于鉴定所涉肺吸虫种类的虫卵。病史显示，所有患者均来自兰巴雷内以北约10公里处的同一个小村庄米托内。在该地区进行的广泛检测未发现更多病例。因此，我们的工作重点是研究导致人类感染的中间甲壳类宿主。我们检查了从患者所在村庄附近的小溪中采集的90只奥氏苏丹溪蟹和非洲苏丹溪蟹。前一种蟹中有14%、后一种蟹中有8%含有自由游动、未包囊的后尾蚴，类似于双侧子宫并殖吸虫的后尾蚴。随后用这些后尾蚴感染了一只家猫。大约260天后对这只猫进行尸检时，发现了2条成虫并明确鉴定为双侧子宫并殖吸虫，证实了对幼虫后尾蚴的诊断。这些发现支持这样一种推测，即同一地区的人类肺吸虫病病例可能归因于双侧子宫并殖吸虫感染。
