Conraths F J, Bauer C, Becker W
Institut für epidemiologische Diagnostik der Bundesforschungsanstalt für Viruskrankheiten der Tiere, Wusterhausen.
Dtsch Tierarztl Wochenschr. 1996 Jun;103(6):221-4.
To address the question whether N. caninum-infections occur in German cattle, 388 sera from dairy farms with abortions and fecundity problems in North Hesse were tested for antibodies to N. caninum and seropositive farms epidemiologically analyzed. 16 sera (4.1%) with titres of > or= 1:400 from a total of 10 farms (45.5% of the farms) were considered Neospora-positive. There was a conspicuous clustering of seropositive and indifferent animals in three farms. A history of abortion could not be established for all seropositive cows, a finding which may indicate that some animals mount an immune response that can protect against abortions. The validity of the indirect immunofluorescent assay for the diagnosis of the Neospora caninum-infection of cattle is discussed.
为了探究德国牛群中是否存在犬新孢子虫感染，对黑森州北部存在流产和繁殖问题的奶牛场采集的388份血清进行了犬新孢子虫抗体检测，并对血清呈阳性的农场进行了流行病学分析。在总共10个农场（占农场总数的45.5%）中，有16份血清（4.1%）的滴度≥1:400，被判定为新孢子虫阳性。在三个农场中，血清呈阳性和阴性的动物明显聚集。并非所有血清呈阳性的奶牛都有流产史，这一发现可能表明一些动物产生了能够预防流产的免疫反应。文中还讨论了间接免疫荧光试验用于诊断牛犬新孢子虫感染的有效性。
