Dubey J P, Porterfield M L
J Am Vet Med Assoc. 1986 Jun 1;188(11):1312-3.
Multifocal areas of necrosis and infiltrations of mononuclear cells were seen in lung specimens of an equine fetus aborted 2 months before term. Extracellular and intracellular protozoa were seen in the alveolar tissue. Individual organisms were 4 microns by 2.5 microns, and cyst-like structures were 25 microns by 18 microns. Organisms did not stain with periodic acid-Schiff or by use of the immunoperoxidase and peroxidase-antiperoxidase method for Toxoplasma gondii. Twelve days after abortion, the mare had serum antibody titer of less than 1:10 against T gondii.
在一匹早产2个月的马胎儿的肺标本中，可见多灶性坏死区和单核细胞浸润。在肺泡组织中可见细胞外和细胞内原虫。单个生物体大小为4微米×2.5微米，囊样结构大小为25微米×18微米。这些生物体不能用高碘酸-希夫染色法染色，也不能用针对刚地弓形虫的免疫过氧化物酶法和过氧化物酶-抗过氧化物酶法染色。流产12天后，母马血清中针对刚地弓形虫的抗体滴度低于1:10。
