力或易感性的制约机制。作者观察了婴儿利什曼原虫慢性感染(实验感染或自然感染)犬的体液及细胞免疫状况,及与原虫免疫应答有关的白细胞介素(IL-2,IL-6)及肿瘤坏死因子(TNF)的情况。 研究所用的外周血单核细胞(PBMC)取自3组犬。第一组为纯系小猎兔犬在排除各种利什曼原虫感染的条件下饲养。该组犬在研究疫苗工作时曾接种该种原虫;第二组为 Force or susceptibility constraints. The authors observed the humoral and cellular immune status of dogs with chronic infection with Leishmania infantum (experimental or spontaneous infections), interleukin (IL-2, IL-6) and tumor necrosis factor (TNF) )Case. The peripheral blood mononuclear cells (PBMCs) used in the study were taken from 3 groups of dogs. The first group was a pure-breed Beagle dog bred under various Leishmania infections. The group of dogs vaccinated the protozoa when they studied the vaccine; the second group was