Jacobs P, Rau M E, Lewis D J
Institute of Parasitology, McGill University, Ste. Anne de Bellevue, Québec, Canada.
J Am Mosq Control Assoc. 1993 Mar;9(1):36-45.
Larvae of 4 species of black flies, Prosimulium mixtum, Simulium vittatum, S. decorum and Stegopterna mutata, were exposed in the laboratory to cercariae of the digenean Plagiorchis noblei in flowing water. Prevalence and intensity of infection of all species varied directly with exposure intensity and decreased with increasing water velocity; prevalence increased with larval size. Infection levels for P. mixtum were higher than for the 3 other species. Mortality among infected larvae of all species was 3 times that of controls. Exposure of black fly larvae to P. noblei cercariae may adversely affect their survival.
四种蚋的幼虫，即混拟蚋、带纹蚋、美饰蚋和突变坚蚋，在实验室中于流水环境下接触了复殖吸虫诺氏斜睾吸虫的尾蚴。所有种类的感染率和感染强度均与接触强度呈正相关，且随水流速度增加而降低；感染率随幼虫大小增加而升高。混拟蚋的感染水平高于其他三种。所有种类受感染幼虫的死亡率是对照组的3倍。蚋幼虫接触诺氏斜睾吸虫尾蚴可能会对其生存产生不利影响。
