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29312

Coexistence of Virulence and Antibiotic Resistance Genes in Pasteurella multocida Isolated from Diseased Rabbits

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Clinical Science, Surgery and Veterinary Diseases (Pathology, Clinical…ltry Diseases, Fish Diseases and Management, Surgery, Theriogenology)

Abstract

Pasteurella multocida (P. multocida)is considered a predominant pathogenic bacterial agent causing respiratory manifestations (snuffles) in rabbits with considerable economic losses and unfavorable prognosis in Egypt. A few recent P. multocida strains exhibit resistance to the most commonly used antibiotics in the veterinary field. Therefore, the present study was carried out to investigate the prevalence of both virulence and antibiotic resistance genes among P. multocida isolated from diseased rabbits in Sharkia Governorate, Egypt. Only 10 out of 100 tested rabbits` nasal swabs were finally confirmed positive for P. multocida of serogroup A by polymerase chain reaction (PCR). Antibiotic susceptibility testing of the recovered isolates revealed that they were all multidrug resistant (MDR) with a predominance of resistance to amoxicillin, ampicillin, amoxicillin/clavulanic acid, neomycin and tetracycline (100% each), followed by kanamycin and streptomycin (90% each). All the recovered isolates were further subjected to PCR screening of some common virulence and antibiotic resistance genes of interest . With the exception of toxA gene, the other virulence associated genes (ptfA, Omp < /em>87 and nanB) were found among all the examined isolates. Totally, all MDR P. multocida isolates contained at least one antibiotic resistance gene with aphA1 being the most prevalent (100%), followed by ermX gene (40%). Antibiotic resistance genotyping demonstrated the presence of multiple antibiotic resistance genes among majority of the isolates (40%) with only one isolate harboring 4 genes encoding identical resistance phenotypes. Evidentially, all MDR P. multocida isolates possessed at least 3 virulence genes accompanied by the attendance of antibiotic resistance genes. These findings evidenced that rabbits are potential sources of pathogenic P. multocida strains harboring virulence and antibiotic resistance genes. Therefore, it is evident that there is an urgent need for the judicious use of antibiotics in rabbits` treatment systems to successfully mitigate the propagation of drug resistance across P. multocida species.

DOI

10.21608/zvjz.2019.6484.1017

Keywords

P. multocida, Rabbits, MDR, Antibiotic resistance genes, Virulence factors

Authors

First Name

Naglaa

Last Name

Awad

MiddleName

-

Affiliation

Department of Avian and Rabbit Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia, 44519, Egypt

Email

nf2731982@gmail.com

City

Zagazig

Orcid

-

First Name

Marwa

Last Name

Abd El-Hamid

MiddleName

-

Affiliation

Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, 44519 Zagazig, Sharkia, Egypt

Email

mero_micro2006@yahoo.com

City

Zagazig

Orcid

-

Volume

47

Article Issue

1

Related Issue

5158

Issue Date

2019-03-01

Receive Date

2018-12-03

Publish Date

2019-03-01

Page Start

91

Page End

102

Print ISSN

1110-1458

Online ISSN

2357-075X

Link

https://zvjz.journals.ekb.eg/article_29312.html

Detail API

https://zvjz.journals.ekb.eg/service?article_code=29312

Order

9

Type

Original Article

Type Code

601

Publication Type

Journal

Publication Title

Zagazig Veterinary Journal

Publication Link

https://zvjz.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023