Mycoplasma bovis arthritis and pneumonia in calves in Jordan: An emerging disease

Vet World Vol.11 December-2018 Article-3

Research Article

Veterinary World, 11(12): 1663-1668

https://doi.org/10.14202/vetworld.2018.1663-1668

Wael M. Hananeh¹, Waleed M. Al Momani², Mustafa M. Ababneh³, and Sameeh M. Abutarbush⁴

1. Department of Veterinary Pathology and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box, 3030, Irbid 22110, Jordan.
2. Department of Basic Medical Sciences, Faculty of Medicine, Yarmouk University, Irbid, Jordan.
3. Department of Basic Veterinary Medical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan.
4. Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.

Background and Aim: Clinical, microbiological, molecular, and pathological assays were undertaken to characterize an outbreak of increasingly reported signs of unresponsive arthritis and pneumonia of Mycoplasma bovis infection in young calves in Jordan.

Materials and Methods: Clinical history of the affected bovine herd was investigated for the presence of respiratory and/ or joint problems. Two calves with such history were clinically examined and necropsied. Representative tissues were sent for microbiological, molecular, and pathological examinations for M. bovis infection.

Results: The outbreak started in a herd of 220 nursing calves, 2 months before the receiving of two calves for postmortem examination. Clinically, respiratory signs and infection of one or more joints dominated in the affected calves. The morbidity and case fatality rates were 27.27% and 61.7%, respectively. The left carpal joint was markedly swollen in both calves and exhibited necrofibrinous to granulomatous arthritis in varying degrees of severity. The anteroventral lung lobes in both calves were consistently affected and revealed multifocal to coalescing severe necrogranulomatous and fibrinopurulent bronchopneumonia. Microbiological and molecular findings confirmed the pathological examination. Furthermore, bovine viral diarrhea (BVD) was diagnosed in one calf by histopathology and polymerase chain reaction.

Conclusion: This investigation reports the first outbreak of M. bovis infection in calves located in Jordan that could occur concurrently with BVD. Keywords: arthritis, bovine, Mycoplasma bovis, pathology, pneumonia.

Keywords: arthritis, bovine, Mycoplasma bovis, pathology, pneumonia.

How to cite this article: Hananeh WM, Al Momani WM, Ababneh MM, Abutarbush SM (2018) Mycoplasma bovis arthritis and pneumonia in calves in Jordan: An emerging disease, Veterinary World, 11(12): 1663-1668.

Received: 26-07-2018 Accepted: 25-10-2018 Published online: 12-12-2018

Corresponding author: Wael M. Hananeh E-mail: whananeh@just.edu.jo

DOI: 10.14202/vetworld.2018.1663-1668

Copyright: Hananeh, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.