自然感染的杂交奶牛在妊娠期针对[具体抗原1]和[具体抗原2]的抗体血清滴度波动情况。 （你原文中“for and ”这里表述不完整，我按照格式要求先这样翻译了，你可以补充完整信息后再让我翻译）
Fluctuations of antibody serum titers for and in naturally infected crossbred cows during gestation.
作者信息
de Oliveira Uillians Volkart, de Magalhães Vanessa Carvalho Sampaio, Costa Sônia Carmen Lopo, Allaman Ivan Bezerra, Munhoz Alexandre Dias
机构信息
Veterinarian, Faculdade de Ciências Sociais Aplicadas (FACISA), Itamaraju, BA, Brazil.
Veterinarian, Departamento de Agricultura e Meio Ambiente, Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, Brasil.
出版信息
Braz J Vet Med. 2023 Dec 26;45:e003023. doi: 10.29374/2527-2179.bjvm003023. eCollection 2023.
This study aimed to assess the fluctuations of antibody serum titers for and in naturally infected crossbred cows during gestation and to investigate transplacental transmission of ; 51 cows were monitored during pregnancy by monthly serologic testing by indirect fluorescent antibody test. 33 cows were seronegative for both and , 10 were seropositive only for , 5 were seropositive only for and 3 were seropositive for both and . In both protozoan infections, great variation in antibody levels in pregnant cows was observed, and there was significant increase (p<0.05) in the comparison between the averages of serological titration per trimester. There was a significant correlation (p<0.05) between month and probability of seropositivity for . We conclude that pregnancy influences antibody titers of crossbred cows naturally infected with and/or , and that serologic testing for in pregnant cows from the sixth month of gestation onward may decrease the number of false negative results.
本研究旨在评估自然感染的杂交奶牛在妊娠期 和 的抗体血清滴度波动情况，并研究 的胎盘传播；通过间接荧光抗体试验每月进行血清学检测，在孕期对51头奶牛进行了监测。33头奶牛对 和 均为血清阴性，10头仅对 血清阳性，5头仅对 血清阳性，3头对 和 均血清阳性。在这两种原生动物感染中，均观察到妊娠奶牛抗体水平有很大差异，且每三个月血清学滴定平均值之间的比较有显著增加（p<0.05）。月份与 血清阳性概率之间存在显著相关性（p<0.05）。我们得出结论，妊娠会影响自然感染 和/或 的杂交奶牛的抗体滴度，并且从妊娠第六个月起对妊娠奶牛进行 的血清学检测可能会减少假阴性结果的数量。
Zotero 插件