Veterinary Research Forum
Vet Res Forum

Identification of bovine leukemia virus in raw milk samples in North-West of Iran

Document Type : Original Article

Authors

Hossein Barzeghar 1
Hessam Mirshahabi 1
Nima Motamed 2
Massoud Yavarmanesh 3
Behroz Mahdavi Poor 4
Seyyed Reza Moaddab 4
Mohammad Asgharzadeh 5

1 Department of Microbiology and Virology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran

2 Department of Social Medicine, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran

3 Department of Food science and Technology, Ferdowsi University of Mashhad, Mashhad, Iran

4 Department of Laboratory Sciences, Faculty of Paramedicine, Tabriz University of Medical Sciences, Tabriz, Iran

5 Hematology and Oncology Research Center, Faculty of Paramedicine, Tabriz University of Medical Sciences, Tabriz, Iran

https://doi.org/10.30466/vrf.2019.102686.2446
Abstract
Bovine leukemiavirus (BLV) is one of the most important carcinogenic viruses genetically related to the human T-cell lymphotropic viruses (HTLV-1 and HTLV-2). The virus infects type B lymphocytes and creates lymph glands tumors. Recently, the association between the presence of this virus and breast cancer has been addressed in humans. Here, we studied the prevalence of BLV in the samples of raw milk of native Iranian and Iranian-foreign cows in traditional, semi-industrial and industrial dairy farms in rural and urban areas of Zanjan province. Raw milk samples of cows were collected manually in sterile tubes. The samples were tested by nested-PCR method. Forty samples (9.93%) out of 403 samples showed BLV contamination. In this study, nested-PCR was successfully applied to determine the level of contamination in raw milk samples from cows infected with BLV. Furthermore, a relatively high rate of BLV infection was found in dairy cows in Zanjan province, northwestern of Iran.

Keywords

Bovine leukemia virus
Breast cancer
Milk
Nested-PCR
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Veterinary Research Forum
Volume 12, Issue 2
Spring 2021
Pages 223-227

  • Receive Date 26 January 2019
  • Revise Date 08 September 2019
  • Accept Date 09 December 2019

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