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191179

Brucella Prevalent Strains Circulating in Egypt during 2020-2021: Bacteriological and Molecular Study

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Veterinary clinical research (Veterinary Surgery, theriogenology, inte…seases, clinical pathology, applied epidemiology and animal hygiene).

Abstract

Brucellosis is a major constraint to livestock production that still enzootic in livestock in many developing countries including Egypt. This study was conducted with the general objective of establishing the bacteriological status of bovine brucellosis in 15 governorates in Egypt during 2020-2021 to determine the circulating Brucella species on bacteriological and molecular basis. Clinical samples collected included milk or udder secretions, vaginal discharges, fetal membranes and stomach contents of aborted fetuses from dairy cows with history of brucellosis. In addition, lymph nodes (retropharyngeal, prescapular, prefemoral, internal iliac and supramammary) from carcasses of serologically positive animals were obtained from different localities for isolation and identification of Brucella organisms. A total of 136 Brucella isolates were recovered from cattle in different governorates, Egypt. These include, 107 isolates of Brucella melitensis biovar 3 identified on bacteriological and molecular basis from Aswan, Beheira,  Beni Suef, Dakahlia, Damietta, Fayoum, Gharbia, Giza, Ismailia, Kafr El-Sheikh, Luxor, Monufia, Port Said, Qalyubia and Sharqia governorates. On the other hand, 29 Brucella abortus biovar 1 isolates were recovered from cattle from Beni Suef, Dakahlia, Damietta, Kafr El-Sheikh, Monufia, Port Said and Sharqia governorates. Molecular identification using primer sequences targeting IS711 gene confirmed Brucella on genus level. Multiplex PCR has amplified four fragments of 450bp, 587 bp, 1071 bp, and1682 bp characteristic for B. melitensis biovar 3, and three fragments of 450bp, 587 bp, and 1682 bp for B. abortus biovar 1. The identification of Brucella spp. in different farm animals of 15 Egyptian governorates highlights the dynamics and role of cattle in dissemination of Brucella infection all over the country.  The obtained results indicate that the actual Brucellosis status during the years 2020 and 2021 refers to that B. melitensis biovar 3 and B. abortus biovar 1 are the prevalent types circulating in different Egyptian governorates.

DOI

10.21608/JVMR.2021.88953.1040

Keywords

Brucellosis, Bacteriology, Egypt, Molecular Typing

Authors

First Name

Hosein

Last Name

Hosein

MiddleName

I

Affiliation

Department of Veterinary Medicine, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.

Email

hoseinabdalaal2014@yahoo.com

City

-

Orcid

-

First Name

Mahmoud

Last Name

Hamdy

MiddleName

E.R.

Affiliation

Department of Brucella Researches, Animal Health Research Institute, (AHRI) - Dokki, Giza, Egypt.

Email

mahmoudhamdy@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Zaitoun

MiddleName

M.A.

Affiliation

Department of Animal Medicine, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.

Email

ahmedzaitoun@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Menshawy

MiddleName

M.

Affiliation

Department of Veterinary Medicine, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.

Email

ahmedmenshawy@yahoo.com

City

Beni-Suef

Orcid

-

First Name

Sherin

Last Name

Rouby

MiddleName

R.

Affiliation

Department of Veterinary Medicine, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.

Email

sherinrouby@yahoo.com

City

-

Orcid

-

First Name

Bahaa

Last Name

Madkour

MiddleName

-

Affiliation

Department of Animal Medicine, Faculty of Veterinary Medicine, Aswan University, Aswan Egypt.

Email

bahaamadkour@yahoo.com

City

-

Orcid

-

First Name

Amira

Last Name

Mazeed

MiddleName

M.

Affiliation

Department of Brucella Researches, Animal Health Research Institute, (AHRI) - Dokki, Giza, Egypt.

Email

mohamedamera818@yahoo.com

City

Giza

Orcid

-

First Name

Aml

Last Name

Abdel-Ra'ouf

MiddleName

-

Affiliation

Department of Animal Medicine, Faculty of Veterinary Medicine, Aswan University, Aswan Egypt.

Email

aml.raouf@vet.aswu.edu.eg

City

-

Orcid

0000-0002-0640-6779

Volume

28

Article Issue

1

Related Issue

27310

Issue Date

2021-06-01

Receive Date

2021-08-02

Publish Date

2021-06-01

Page Start

12

Page End

20

Print ISSN

2357-0512

Online ISSN

2357-0520

Link

https://jvmr.journals.ekb.eg/article_191179.html

Detail API

https://jvmr.journals.ekb.eg/service?article_code=191179

Order

2

Type

Original Article

Type Code

891

Publication Type

Journal

Publication Title

Journal of Veterinary Medical Research

Publication Link

https://jvmr.journals.ekb.eg/

MainTitle

Brucella Prevalent Strains Circulating in Egypt during 2020-2021: Bacteriological and Molecular Study

Details

Type

Article

Created At

22 Jan 2023