de Souza C P, Jannotti-Passos L K, de Freitas J R
Centro de Pesquisas René Rachou-FIOCRUZ, Belo Horizonte, Brasil.
Mem Inst Oswaldo Cruz. 1995 Jan-Feb;90(1):5-10. doi: 10.1590/s0074-02761995000100003.
The compatibility of Biomphalaria tenagophila, B. straminea and B. glabrata from Minas Gerais with different strains of Schistosoma mansoni was evaluated using the method of Frandsen (1979b) in standardized experiments. One hundred and fifty of each species of snail were individually exposed in the laboratory to 50 miracidia of S. mansoni lines LE, SJ and AL. The cercariae from the infected snails were counted and used to calculate TCP/100 indices, which were compared with those of Frandsen (1979b). For B. tenagophila the TCP/100 indices varied from 37,996 to 74,266 (class II and III). The snail was poorly compatible with LE (class II) and compatible with SJ and AL (class III). For B. straminea the indices varied from 9,484 to 20,508. The snail was not very compatible with SJ (class I) and poorly compatible with LE and AL (class II). For B. glabrata the indices varied from 588,828 to 1,039,065. The snails was extremely compatible (class VI) with the three lines of S. mansoni. These results confirm the epidemiological importance of B. glabrata in Brazil followed by B. tenagophila and B. straminea.
采用弗兰森（1979b）的方法，在标准化实验中评估了来自米纳斯吉拉斯州的嗜卷艾氏螺、淡黄艾氏螺和平滑双脐螺与不同曼氏血吸虫株的相容性。在实验室中，将每种150只蜗牛分别暴露于曼氏血吸虫LE、SJ和AL株的50个毛蚴。对感染蜗牛逸出的尾蚴进行计数，并用于计算每100只蜗牛的感染尾蚴数（TCP/100）指标，将其与弗兰森（1979b）的指标进行比较。对于嗜卷艾氏螺，TCP/100指标在37996至74266之间（II类和III类）。该蜗牛与LE株相容性差（II类），与SJ和AL株相容性良好（III类）。对于淡黄艾氏螺，指标在9484至20508之间。该蜗牛与SJ株相容性不太好（I类），与LE和AL株相容性差（II类）。对于光滑双脐螺，指标在588828至1039065之间。这些蜗牛与曼氏血吸虫的三株都具有极高的相容性（VI类）。这些结果证实了光滑双脐螺在巴西的流行病学重要性，其次是嗜卷艾氏螺和淡黄艾氏螺。
