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  • Title: Simultaneous detection of Chlamydia spp., Coxiella burnetii, and Neospora caninum in abortion material of ruminants by multiplex real-time polymerase chain reaction.
    Author: Reisberg K, Selim AM, Gaede W.
    Journal: J Vet Diagn Invest; 2013 Sep; 25(5):614-9. PubMed ID: 23942900.
    Abstract:
    Chlamydia spp., Coxiella burnetii, and Neospora caninum are responsible for reproductive diseases and are closely linked with high abortion rates in ruminants. Furthermore, C. burnetii and Chlamydia spp. have zoonotic potential. A real-time polymerase chain reaction (PCR) assay was developed for the simultaneous detection of Chlamydia spp., C. burnetii, and N. caninum. The detection of beta-actin as internal control in the same PCR reaction provides additional information about sample quality by detecting the presence of PCR inhibitors. The multiplex real-time PCR developed in the current study shows a greater sensitivity compared to previously used single-target PCR reactions with a reproducible detection limit of 0.13 plasmid copies per PCR for each target. Additional parallel amplification of all detectable pathogens did not adversely impact sensitivity. This new multiplex PCR allows the highly sensitive, cost-effective, and rapid detection of 3 important pathogens and has the potential to be a useful time-saving tool in the routine diagnosis of abortion cases in ruminants.
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