Vet World Vol.10 October-2017 Article-18
Research Article
Veterinary World, 10(10): 1275-1280
https://doi.org/10.14202/vetworld.2017.1275-1280
Bovine origin Staphylococcus aureus: A new zoonotic agent?
2. Vascular Biology Laboratory, AU-KBC Research Centre, Anna University, Chennai - 600 044, Tamil Nadu, India.
Background and Aim: The study aimed to assess the nature of animal origin Staphylococcus aureus strains. The study has zoonotic importance and aimed to compare virulence between two different hosts, i.e., bovine and ovine origin.
Materials and Methods: Conventional polymerase chain reaction-based methods used for the characterization of S. aureus strains and chick embryo model employed for the assessment of virulence capacity of strains. All statistical tests carried on R program, version 3.0.4.
Results: After initial screening and molecular characterization of the prevalence of S. aureus found to be 42.62% in bovine origin samples and 28.35% among ovine origin samples. Meanwhile, the methicillin-resistant S. aureus prevalence is found to be meager in both the hosts. Among the samples, only 6.8% isolates tested positive for methicillin resistance. The biofilm formation quantified and the variation compared among the host. A Welch two-sample t-test found to be statistically significant, t=2.3179, df=28.103, and p=0.02795. Chicken embryo model found effective to test the pathogenicity of the strains.
Conclusion: The study helped to conclude healthy bovines can act as S. aureus reservoirs. Bovine origin S. aureus strains are more virulent than ovine origin strains. Bovine origin strains have high probability to become zoonotic pathogen. Further, gene knock out studies may be conducted to conclude zoonocity of the bovine origin strains. Keywords: chicken embryo model, Staphylococcus aureus, virulence, zoonotic agent.
Keywords: chicken embryo model, Staphylococcus aureus, virulence, zoonotic agent.
How to cite this article: Rao RT, Jayakumar K, Kumar P (2017) Bovine origin Staphylococcus aureus: A new zoonotic agent? Veterinary World, 10(10): 1275-1280.
Received: 07-07-2017 Accepted: 25-09-2017 Published online: 26-10-2017
Corresponding author: Kannan Jayakumar E-mail: jklabinbox@gmail.com
DOI: 10.14202/vetworld.2017.1275-1280
Copyright: Rao, 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.