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Avian Influenza Virus Screening in Some Egyptian Provinces

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Last updated: 04 Jan 2025

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Abstract

Avian influenza virus (AIV) is one of the most important viral diseases that widely affect the Egyptian commercial poultry industry, with varying mortality rates and clinical symptoms. AIV is a catastrophic disease of poultry belonging to the family Orthomyxoviridae, genus Influenza A virus. This study aims to identify, analyze, and resolve issues related to the epidemiology, and diagnosis of currently prevalent AIV subtypes in Egyptian field. Molecular evidence of AIV subtypes was investigated in domesticated commercial poultry in three Egyptian provinces (Ismailia, Sharqia, and Dakahlia) between 2022 and 2023. 50 tissue samples were examined by Real-time reverse transcription polymerase chain reaction (RT-qPCR) followed by isolation trial and serological identification through hemagglutination (HA) and hemagglutination inhibition test (HI)  of the 9 positive samples (8 H9, and 1H5). The isolated samples were negative for AIV by HI test; this result may be due to several reasons as the presence of degraded nucleic acid, but not active virus or the samples collected during the convalescent stage. From this result, it can be concluded that the continuous circulating of H9 and H5 viruses detected in this study necessitates regular virus monitoring for better control. The objective of this study was molecular investigation of AIV in domestic in Egypt, focusing on H5, H9 and H7 subtypes.

DOI

10.21608/ejah.2024.336793

Keywords

Avian influenza virus, H5AIV, H9AIV, Egypt, RT-qPCR

Volume

4

Article Issue

1

Related Issue

43863

Issue Date

2024-01-01

Receive Date

2024-11-28

Publish Date

2024-01-01

Page Start

226

Page End

232

Print ISSN

2735-4938

Online ISSN

2735-4946

Link

https://ejah.journals.ekb.eg/article_336793.html

Detail API

https://ejah.journals.ekb.eg/service?article_code=336793

Order

336,793

Type

Original researches

Type Code

1,636

Publication Type

Journal

Publication Title

Egyptian Journal of Animal Health

Publication Link

https://ejah.journals.ekb.eg/

MainTitle

Avian Influenza Virus Screening in Some Egyptian Provinces

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Type

Article

Created At

28 Dec 2024