Rhyan J C, Dubey J P
J Am Vet Med Assoc. 1984 Mar 15;184(6):661-4.
Of 33 ewes in a flock in Montana, 6 aborted or gave birth to weak lambs, which died within 2 days after birth. Two lambs and a placenta from 1 ewe as well as 1 lamb from another ewe were submitted for diagnosis. Focal necrotizing placentitis, focal pneumonia, focal hepatitis, focal interstitial nephritis, and focal nonsuppurative encephalitis were seen in tissue sections from 2 of the lambs. Toxoplasma gondii was found in smears and sections of the placenta and in sections of lung from 1 lamb. Mice inoculated with tissues from a lamb developed dye test antibodies to T gondii. Eleven of 12 ewes from the same flock had dye test antibody titers of 1:16 or more, and titers were 4-fold higher in aborting ewes than in ewes with normal lambs.
在蒙大拿州的一个羊群中，33只母羊中有6只流产或产下虚弱的羔羊，这些羔羊在出生后2天内死亡。提交了2只羔羊、1只母羊的胎盘以及另一只母羊的1只羔羊进行诊断。在2只羔羊的组织切片中发现了局灶性坏死性胎盘炎、局灶性肺炎、局灶性肝炎、局灶性间质性肾炎和局灶性非化脓性脑炎。在1只羔羊的胎盘涂片和切片以及肺切片中发现了弓形虫。用羔羊组织接种的小鼠产生了针对弓形虫的染料试验抗体。同一羊群的12只母羊中有11只的染料试验抗体滴度为1:16或更高，流产母羊的滴度比产下正常羔羊的母羊高4倍。
