Yusuf J N, Piekarski G, Pelster B
Z Parasitenkd. 1980;62(3):231-40. doi: 10.1007/BF00926564.
Concurrent infections with two parasites: a nematode, Trichinella spiralis, and a protozoon. Toxoplasma gondii, were investigated. Antibody production (total immunoglobulin and IgM) was similar in double and single infections. However, the number of Toxoplasma cysts in the brains of mice infected with Trichinella and challenged 1-6 weeks later with Toxoplasma was higher than in mice infected with Toxoplasma alone, while mice infected with Toxoplasma and challenged 4-14 days later with Trichinella had lower worm burdens in the intestine than animals infected with Trichinella alone. Greater loss in body weight was observed in mice infected with both parasites than in those infected with either parasite alone.
对两种寄生虫——一种线虫旋毛虫和一种原生动物刚地弓形虫的合并感染进行了研究。双重感染和单一感染中的抗体产生（总免疫球蛋白和IgM）相似。然而，先感染旋毛虫并在1 - 6周后用弓形虫攻击的小鼠大脑中弓形虫囊肿的数量高于仅感染弓形虫的小鼠，而先感染弓形虫并在4 - 14天后用旋毛虫攻击的小鼠肠道中的虫负荷低于仅感染旋毛虫的动物。与仅感染任一种寄生虫的小鼠相比，同时感染两种寄生虫的小鼠体重减轻更明显。
