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Cross Sectional Study for Evaluation of Rapid Test and RT-PCR in Detection of BRV in Fecal Samples of Diarrhetic Calves in Egypt

机译:快速试验和RT-PCR检测埃及尿液牛犊粪便样本中快速试验和RT-PCR的横截面研究

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In the present study, forty-three fecal samples were collected between 2018 and 2020, were tested for bovine Rotavirus (RBV) by rapid commercial strip test, Ag detection sandwich ELISA and RT-PCR for screening and matching of sensitivity and specificity. Our results revealed that seven samples (7/43; 16.2%) were positive by rapid test, fourteen and ten samples were positive by Ag detection ELISA (14/43; 32.5%) and RT-PCR (10/43; 23.2%), respectively. Sequence analysis for one positive sample showed its complete identity with the recent BRV Egyptian strains which reassures the vaccine reliability and negates any recent virus evolution. Meanwhile, comparison between both the rapid test and RT-PCR and ELISA, the sensitivity was 50% and 71.5% respectively, while specificity was identical. In conclusions, ELISA can be considered as a simple, sensitive and reliable test for BRV detection and devoid the drawbacks of other tests.
机译:在本研究中,在2018和2020之间收集了四十三种粪便样品,通过快速商业条试验,Ag检测夹心ELISA和RT-PCR测试牛轮状病毒(RBV),用于筛选和匹配敏感性和特异性。我们的研究结果显示,通过快速试验,七个样品(7/43; 16.2%)通过Ag检测ELISA(14/43; 32.5%)和RT-PCR阳性,14个样品为阳性(10/43; 23.2%) , 分别。一个阳性样本的序列分析显示其与最近的BRV埃及菌株的完全同一性,该菌株放置了疫苗可靠性并否定了最近的任何病毒演化。同时,快速试验和RT-PCR和ELISA之间的比较,敏感性分别为50%和71.5%,而特异性相同。在结论中,ELISA可以被认为是对BRV检测的简单,敏感和可靠的测试,并且没有其他测试的缺点。

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