Laboratorio de Parasitología, INIBIOMA (CONICET-Universidad Nacional del Comahue), Bariloche, Río Negro, Argentina.
Grupo de Ecología de La Polinización, INIBIOMA (CONICET-Universidad Nacional del Comahue), Bariloche, Río Negro, Argentina.
Parasitol Res. 2024 May 6;123(5):205. doi: 10.1007/s00436-024-08220-2.
Between 1898 and 1940, eight human cases of diphyllobothriasis were reported in Argentina, always in recently arrived European immigrants. In 1982, the first autochthonous case was detected, and since then, 33 other autochthonous cases have been reported, totaling 42 cases of human diphyllobothriasis in Argentina before the present study. Our aim is to update the information on diphyllobothriasis in Argentina by identifying specimens from new cases using morphometrical and/or molecular methods. We also aim to assess the epidemiological relevance of this food-borne disease in the country. Anamnestic data were obtained from patients or professionals, along with 26 worms identified using morphometrical (21 samples) and molecular techniques (5 samples). All the patients acquired the infection by consuming freshwater salmonids caught in Andean lakes in Northern Patagonia. Morphometrics and DNA markers of worms were compatible with Dibothriocephalus latus. In total, 68 human cases have been detected in Argentina, 60 of which were autochthonous. The human population living North-western Patagonia, whose lakes are inhabited by salmonids, is increasing. Similarly, the number of other definitive hosts for Dibothriocephalus dendriticus (gulls) and for D. latus (dogs) is also increasing. In addition, salmonid fishing and the habit of consuming home-prepared raw fish dishes are becoming widespread. Therefore, it is to be expected that diphyllobothriasis in Argentina will increase further.
1898 年至 1940 年间，阿根廷报告了 8 例人体并殖吸虫病病例，均为新近抵达的欧洲移民。1982 年，首次发现了本土病例，此后，又报告了 33 例本土病例，在本研究之前，阿根廷共有 42 例人体并殖吸虫病病例。我们的目的是通过使用形态计量学和/或分子方法识别新病例中的标本，更新阿根廷并殖吸虫病的信息。我们还旨在评估这种食源性疾病在该国的流行病学相关性。我们从患者或专业人员那里获得了病史数据，以及通过形态计量学（21 个样本）和分子技术（5 个样本）识别出的 26 条虫体。所有患者都是通过食用在安第斯山脉北部湖泊中捕获的淡水鲑鱼而感染的。虫体的形态计量学和 DNA 标记与阔节裂头绦虫相符。在阿根廷共发现了 68 例人体病例，其中 60 例为本土病例。居住在巴塔哥尼亚西北部的人口不断增加，而这些湖泊中则生活着鲑鱼。同样，阔节裂头绦虫（海鸥）和阔节裂头绦虫（狗）的其他终末宿主的数量也在增加。此外，鲑鱼捕捞和食用自制生鱼片的习惯也越来越普遍。因此，可以预计阿根廷的并殖吸虫病病例将进一步增加。
