Yacoubi B, Zekhnini A, Moukrim A, Rondelaud D
Laboratoire systèmes aquatiques, Milieu marin et continental, Faculté des sciences, BP 28/S, 80000 Agadir, Maroc.
Bull Soc Pathol Exot. 2007 Aug;100(3):174-5.
Since Planorbarius metidjensis was recently found to be an experimental intermediate host of Schistosoma haematobium in the South-West of Morocco, a study on planorbid and B. truncatus was carried out from 1997 to 2005. Eleven planorbid populations were identified in 1997 in the Agadir province, all living at high altitude (from 340 to 1380 m). In contrast, most of the seven bulinid populations inhabited low-lying zones. Three annual generations of P. metidjensis (April-July June-September, and August-March) were noted in two populations (living in perennial bodies of water) in Imouzzer so that juvenile snails were present throughout the year. The dissection of numerous snails collected from these 18 populations between 1999 and 2005 revealed the absence of natural infections with S. haematobium. As most cases of human bilharziosis detected in the Agadir region between 1993 and 1997 are located in highlands, P. metidjensis might be the principal intermediate host of S. haematobium in districts at 500 m above sea level.
由于最近发现梅蒂贾盘螺是摩洛哥西南部埃及血吸虫的实验中间宿主，1997年至2005年对盘螺和截形膀胱螺进行了一项研究。1997年在阿加迪尔省鉴定出11个盘螺种群，它们都生活在高海拔地区（海拔340至1380米）。相比之下，7个膀胱螺种群中的大多数栖息在低洼地带。在伊穆泽尔的两个种群（生活在常年水域）中发现梅蒂贾盘螺有三代（4月至7月、6月至9月和8月至次年3月），因此全年都有幼螺。1999年至2005年间对从这18个种群中采集的大量螺类进行解剖，结果显示未发现埃及血吸虫的自然感染情况。由于1993年至1997年间在阿加迪尔地区检测到的大多数人类血吸虫病病例都位于高地，梅蒂贾盘螺可能是海拔500米以上地区埃及血吸虫的主要中间宿主。
