Have a personal or library account? Click to login
Molecular characterisation of the Mycobacterium bovis causing bovine tuberculosis outbreaks in Poland Cover

Molecular characterisation of the Mycobacterium bovis causing bovine tuberculosis outbreaks in Poland

Open Access
|Jan 2020

Abstract

Introduction

Since 2009, Poland has been recognised as a country officially free of bovine tuberculosis (bTB), although in each year of the last five there were from 8 to 18 outbreaks of the disease. In 2008–2016, the largest number of cattle infected with bovine mycobacteria were eliminated in the Masovian Province (the central region of Poland) and the largest number of outbreaks of this zoonosis were recorded in this area. The close proximity of farms where bTB was found led to the suspicion that tuberculosis could have been transmitted between the affected herds. The aim of the study was the molecular characterisation of the pertinent M. bovis/caprae strains and determination of the epidemiological relationship of various bTB outbreaks.

Material and Methods

The material for microbiological tests came from 119 cattle (Bos taurus) from nine herds located in five provinces, neighbouring the Masovian Province.

Results

Laboratory tests of tissue material gave results confirming tuberculosis in 54 (45%) animals. All strains belonged to the Mycobacterium bovis species. A two-step analysis of genetic affinity allowed 50 strains to be identified as phylogenetically closely related and separated between three genetic clusters consisting of 2 to 27 strains.

Conclusion

Based on the results of genotyping, bTB outbreaks were found in three herds, and three transmission chains were identified among these herds.

Language: English
Page range: 45 - 50
Submitted on: May 23, 2019
Accepted on: Jan 13, 2020
Published on: Jan 20, 2020
Published by: National Veterinary Research Institute in Pulawy
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2020 Monika Krajewska-Wędzina, Monika Kozińska, Łukasz Radulski, Marek Lipiec, Ewa Augustynowicz-Kopeć, Marcin Weiner, Krzysztof Szulowski, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.