关键词: 伯氏疟原虫, 约氏疟原虫, 小鼠, 原虫血症, 自然消长, 输血感染, 红细胞, 鼠疟原虫, 原虫密度, 阳性率

Abstract: After blood inoculation with different doses of P. yoelii, the mice (Kunming strain) were found to be very susceptible. Even with 5 infected red blood cells, the infection rate of mice was 66.7%. But when inoculated with P. berghei in doses less than 1×106 infected red blood cells, only some mice were infected. Using similar doses, the para-sitaemia with P. berghei had a slower course than that with P. yoelii. After inoculation with P. yoelii, parasites disappeared naturally, but with P. berghei all the mice died soon after the peak parasitemia.