Development and evaluation of a TaqMan® real-time PCR assay for species-specific detection of Ehrlichia canis

The aim of this work was to develop a real-time PCR assay with a TaqMan® probe that detects a species-specific part of the 16S rDNA gene of Ehrlichia canis. Canine blood samples (n = 207), collected and tested by a conventional PCR assay within a study conducted by De Salvo et al., were simultaneously analyzed with the novel designed real-time PCR, and the results of both assays were compared. The agreement between the two methods was 97.6 % with a kappa value of 0.92186. Hereby, the standard error was 0.034416 and the 95 % confidence interval from 0.8544 to 0.98931. While the conventional PCR assay showed false negative results (2.42 %; 5/207), the real-time PCR assays showed a specificity of 100 %. The results of the current study showed that the developed assay presents sensitivity and specificity for the detection of E. canis in blood samples, adding a new tool for the diagnosis of this pathogen.

Bibliographic Details

Main Authors:	Sarli, Macarena, De Salvo, María N., Díaz Pérez, Paula M., Cicuttin, Gabriel L., Nava, Santiago, Sebastian, Patrick
Format:	info:ar-repo/semantics/artículo biblioteca
Language:	eng
Published:	Elsevier 2024-12
Subjects:	Tick-borne Diseases, Diagnosis, Veterinary Medicine, Dogs, Enfermedad Transmitida por Garrapatas, Diagnóstico, Medicina Veterinaria, Ehrlichia canis, Perro, Hemoparasite, Hemoparásitos,
Online Access:	http://hdl.handle.net/20.500.12123/19510 https://www.sciencedirect.com/science/article/pii/S0732889324003432 https://doi.org/10.1016/j.diagmicrobio.2024.116517
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