332104

Brucellosis Seroprevalence, REP-PCR-Based Genotyping, and Virulence-Associated Genes Distribution Among Brucella melitensis Strains Isolated from Ruminants in Kafr Elsheikh Gover

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Veterinary Pathology & Animal Diseases

Abstract

Brucellosis is a neglected bacterial zoonosis that has a significant impact on public health and the livestock industry. The purpose of this study was to determine the brucellosis seroprevalence, the circulating Brucella species, Brucella virulence-associated genes distribution, and repetitive extragenic palindromic PCR (REP-PCR) genotyping of Brucella isolates among ruminants in the Kafr Elsheikh Governorate. Blood samples were randomly collected from 926 cattle, 422 buffaloes, 301 sheep, and 333 goats in Kafr Elsheikh from January 2021 to December 2022. We determined apparent and true brucellosis prevalence in ruminants in various Kafr Elsheikh locations. Isolation and molecular confirmation (AMOS-PCR), phylogeny based on REP-PCR Brucella genotyping was inferred. Virutyping was performed on B. melitensis differences in virulence patterns. Brucellosis's true prevalence was calculated to be 13.3%, 11.2%, 15.8%, and 16.8% in cattle, buffaloes, sheep, and goats. Brucella isolates (n=8) were recovered from the supramammary lymph nodes and confirmed molecularly (AMOS-PCR) and bacteriologically as B. melitensis biovar 3. The B. melitensis isolates showed three virulence patterns (V1-V3), with V1 being the most common pattern (62.5%). REP-PCR clearly discriminated between the detected B. melitensis bv3 isolates into two clades (C1 and C2) and 7 REP genotypes (G1 – G7). In conclusion, the B. melitensis bv3 high diversity genotypes based on REP-PCR patterns highlight the cost-effective discrimination efficiency of the reproducible REP-PCR. B. melitensis's consistent isolation at low rates across the year of sampling may suggest various previous outbreaks of established infection rather than a recent introduction of foreign strains in the Governorate.

DOI

10.21608/ejvs.2023.254135.1711

Keywords

Brucella, prevalence, rep-PCR, Virulence genes, virutype

Authors

First Name

Nour

Last Name

Abdel-Hamid

MiddleName

H.

Affiliation

Department of Brucellosis Research, Agricultural Research Center, Animal Health Research Institute, P.O. Box 264‑Giza, Cairo 12618, Egypt.

Email

nour78_78@yahoo.com

City

-

Orcid

0000-0001-5554-7984

First Name

Mahmoud

Last Name

Al-Saftawy

MiddleName

M.M.

Affiliation

Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Kafrelsheikh University 33516, Egypt

Email

mode96@gmail.com

City

Kafrelsheikh

Orcid

0000-0003-4740-1349

First Name

Amgad

Last Name

Moawad

MiddleName

A.

Affiliation

Bacteriology, Mycology and Immunology Department, Faculty of Veterinary medicine, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt.

Email

moawadamgad@gmail.com

City

Kafrelsheikh

Orcid

0000-0009-8398-1451

First Name

Hoda

Last Name

Zaki

MiddleName

M.

Affiliation

Brucellosis Research Department, Agricultural Research Center, Animal Health Research Institute, P.O. Box 264-Giza, Cairo 12618, Egypt

Email

hodazaki2010@yahoo.com

City

Giza

Orcid

0000-0001-9752-1627

First Name

Mahmoud

Last Name

Abdelhalem

MiddleName

H.

Affiliation

Brucellosis Research Department, Agricultural Research Center, Animal Health Research Institute, P.O. Box 264-Giza, Cairo 12618, Egypt

Email

dr.mahmoud_hassan28@yahoo.com

City

Giza

Orcid

0000-0002-5729-1000

Volume

55

Article Issue

4

Related Issue

44526

Issue Date

2024-07-01

Receive Date

2023-12-08

Publish Date

2024-07-01

Page Start

979

Page End

990

Print ISSN

1110-0222

Online ISSN

2357-089X

Link

https://ejvs.journals.ekb.eg/article_332104.html

Detail API

https://ejvs.journals.ekb.eg/service?article_code=332104

Order

332,104

Type

Original Article

Type Code

140

Publication Type

Journal

Publication Title

Egyptian Journal of Veterinary Sciences

Publication Link

https://ejvs.journals.ekb.eg/

MainTitle

Brucellosis Seroprevalence, REP-PCR-Based Genotyping, and Virulence-Associated Genes Distribution Among Brucella melitensis Strains Isolated from Ruminants in Kafr Elsheikh Gover

Details

Type

Article

Created At

23 Dec 2024