Dubey J P, Thulliez P
Livestock and Poultry Sciences Institute, USDA, Beltsville, MD 20705.
J Am Vet Med Assoc. 1989 May 1;194(9):1297-9.
Serum samples derived from 7 cats 3 to 950 days after cats were fed tissue cysts of Toxoplasma gondii were evaluated using Sabin-Feldman dye, modified agglutination, indirect hemagglutination, and latex agglutination tests. The modified agglutination test, using whole formalin-preserved tachyzoites, was more sensitive for diagnosis of toxoplasmosis than were other tests. Titers from the modified agglutination test that used formalin-preserved tachyzoites were higher than those from the modified agglutination test that used acetone-preserved tachyzoites. Although cats had no clinical signs of toxoplasmosis, T gondii antibody titers remained high (greater than 1:1,000) for up to 29 months.
从7只猫喂食刚地弓形虫组织包囊后3至950天采集的血清样本，采用Sabin-Feldman染色试验、改良凝集试验、间接血凝试验和乳胶凝集试验进行评估。使用经福尔马林保存的完整速殖子的改良凝集试验，对弓形虫病的诊断比其他试验更敏感。使用经福尔马林保存的速殖子的改良凝集试验的滴度高于使用经丙酮保存的速殖子的改良凝集试验的滴度。尽管猫没有弓形虫病的临床症状，但弓形虫抗体滴度在长达29个月的时间里一直保持在较高水平（大于1:1000）。
