Iranian Journal of Veterinary Medicine, Volume (8), No (1), Year (2014-6) , Pages (15-19)

Title : ( Identification of Coxiella burnetii by Touch-Down PCR assay in unpasteurized milk and dairy products )

Authors: Saeid Khanzadi , Abdollah Jamshidi , Jamshid Razmyar , ,

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Abstract

BACKGROUND: Coxiella burnetii is the causative agent of the zoonotic disease Q fever, and ruminants being considered as the main source for human infection. Although the main route of infection in human is inhalation of contaminated aerosols, but oral transmission by contaminated raw milk or unpasteurized dairy products is also a possible route of infection. Raw milk or dairy products produced from unpasteurized milk may contain virulent C. burnetii. OBJECTIVES:This study was aimed to determine the contamination rate of milk and unpasteurized dairy products with C. burnetii. METHODS: Touch-down PCR was used to examine the presence of C. burnetii on 147 dairy product samples collected from local traditional and commercial markets in Mashhad-Khorasan Razavi province- Iran. RESULTS: Two of 28 (7.14%) cheese samples, 2 of 26 (7.69%) yoghurt samples, 8 of 23 (34.78%) sheep's milk samples and 2 of 60 (3.33%) cow's milk samples were found to be positive for C. burnetii DNA. However 10 goat’s milk samples were found to be negative. CONCLUSIONS: The results of this study indicate that those clinically healthy dairy livestock and their dairy products are important sources of C. burnetii infection.

Keywords

, Key words: Milk, unpasteurized Dairy products, Coxiella burnetii, Touch-down PCR
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@article{paperid:1038495,
author = {Khanzadi, Saeid and Jamshidi, Abdollah and Razmyar, Jamshid and , },
title = {Identification of Coxiella burnetii by Touch-Down PCR assay in unpasteurized milk and dairy products},
journal = {Iranian Journal of Veterinary Medicine},
year = {2014},
volume = {8},
number = {1},
month = {June},
issn = {2251-8894},
pages = {15--19},
numpages = {4},
keywords = {Key words: Milk; unpasteurized Dairy products; Coxiella burnetii; Touch-down PCR},
}

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%0 Journal Article
%T Identification of Coxiella burnetii by Touch-Down PCR assay in unpasteurized milk and dairy products
%A Khanzadi, Saeid
%A Jamshidi, Abdollah
%A Razmyar, Jamshid
%A ,
%J Iranian Journal of Veterinary Medicine
%@ 2251-8894
%D 2014

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