A multi-screening Fast qPCR approach to the identification of abortive agents in ruminants

Autor: Ludovica Curcio, Marcella Ciullo, Martina Torricelli, Cristina Pesca, Andrea Felici, Martina Sebastianelli, M. Biagetti, C. Sebastiani, Deborah Cruciani, Silvia Crotti
Rok vydání: 2017
Předmět:
Zdroj: Journal of microbiological methods. 148
ISSN: 1872-8359
Popis: Abortion in ruminants represents an important economic concern for farmers. Microbial agents, such as Brucella spp., Chlamydia spp., Coxiella burnetii , Leptospira spp., Neospora caninum , Salmonella spp. and Toxoplasma gondii , are among the main infectious causes of abortion and require rapid and reliable diagnosis. This study describes the development of a multi-screening assay using Fast Real-Time PCR (Fast qPCR) that allows, in a single test, the simultaneous identification of the above-mentioned abortive agents. This multi-screening approach is characterized by a mean diagnostic sensitivity and specificity of 100% and 97%, respectively; it has a limit of detection (LOD) ranging from 5 × 10 3 to 4 × 104 genomic copies/g of tissue and a very good concordance with traditional end-point PCR assays used in routine diagnostic activity. The proposed method represents a rapid approach to the simultaneous detection of the main abortive agents in ruminants that allows to make an accurate diagnosis and to set up appropriate control measures in a short period of time.
Databáze: OpenAIRE