Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010

Equine influenza is an infectious and contagious disease of horses. Studies on this topic are rare in the Maghreb countries. Therefore, the aim of this work is to present the various studies conducted on serological and molecular equine influenza virus since 1972 in the Maghreb region in particular...

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Main Authors: Mohamed Boukharta, Fathiah Zakham, Altaf Aloui, Nadia Touil, Mehdi Elharrak, Moulay Mustapha Ennaji
Format: Article
Language:English
Published: SpringerOpen 2014-08-01
Series:Journal of Basic and Applied Zoology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090989613000726
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author Mohamed Boukharta
Fathiah Zakham
Altaf Aloui
Nadia Touil
Mehdi Elharrak
Moulay Mustapha Ennaji
author_facet Mohamed Boukharta
Fathiah Zakham
Altaf Aloui
Nadia Touil
Mehdi Elharrak
Moulay Mustapha Ennaji
author_sort Mohamed Boukharta
collection DOAJ
description Equine influenza is an infectious and contagious disease of horses. Studies on this topic are rare in the Maghreb countries. Therefore, the aim of this work is to present the various studies conducted on serological and molecular equine influenza virus since 1972 in the Maghreb region in particular in Morocco, Algeria and Tunisia. A total of four equine influenza strains were isolated in the Maghreb Arab region. A/equine/Nador/1/1997(H3N8), A/equine/Essaouira/2/2004(H3N8), A/equine/Essaouira/3/2004(H3N8) and A/equine/Algiers/1/1972(H3N8). The highest homology of HA nucleotide sequences of A/equine/Nador/1/1997(H3N8) with European strains: A/equine/Italy/1199/1992(H3N8) and A/equine/Brescia/1999(H3N8) clearly clustered A/equine/Nador/1/1997(H3N8) with the strains belonging to the European lineage. However, A/equine/Algiers/1/1972(H3N8), A/equine/Essaouira/2/2004(H3N8) and A/equine/Essaouira/3/2004(H3N8) were placed in the predivergent lineage indicating that like-Miami/63 strains infected equids in Morocco in 2004. This finding does not corroborate the recent studies of the H3N8 subtype of equine influenza viruses which have demonstrated that the oldest equine H3N8 strains, circulating before 1990 apparently went extinct.
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spelling doaj.art-e8789d51589647d0be11a8654364b6642022-12-22T02:47:16ZengSpringerOpenJournal of Basic and Applied Zoology2090-98962014-08-0167411912610.1016/j.jobaz.2013.12.001Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010Mohamed Boukharta0Fathiah Zakham1Altaf Aloui2Nadia Touil3Mehdi Elharrak4Moulay Mustapha Ennaji5Laboratory of Virology, Microbiology and Quality/ETB/FSTM, University Hassan II Mohammedia-Casablanca, MoroccoLaboratory of Virology, Microbiology and Quality/ETB/FSTM, University Hassan II Mohammedia-Casablanca, MoroccoLaboratoire: Data Mining et Réseaux (DMR), Faculté des Sciences Agdal Université Mohammed V, Rabat, MoroccoDépartement de Biologie, Hôpital Militaire d’Instruction Med V de Rabat, Université Mohammed V, Souissi, Rabat, MoroccoSociété de Produits Biologiques et Pharmaceutiques Vétérinaires, Rabat, MoroccoLaboratory of Virology, Microbiology and Quality/ETB/FSTM, University Hassan II Mohammedia-Casablanca, MoroccoEquine influenza is an infectious and contagious disease of horses. Studies on this topic are rare in the Maghreb countries. Therefore, the aim of this work is to present the various studies conducted on serological and molecular equine influenza virus since 1972 in the Maghreb region in particular in Morocco, Algeria and Tunisia. A total of four equine influenza strains were isolated in the Maghreb Arab region. A/equine/Nador/1/1997(H3N8), A/equine/Essaouira/2/2004(H3N8), A/equine/Essaouira/3/2004(H3N8) and A/equine/Algiers/1/1972(H3N8). The highest homology of HA nucleotide sequences of A/equine/Nador/1/1997(H3N8) with European strains: A/equine/Italy/1199/1992(H3N8) and A/equine/Brescia/1999(H3N8) clearly clustered A/equine/Nador/1/1997(H3N8) with the strains belonging to the European lineage. However, A/equine/Algiers/1/1972(H3N8), A/equine/Essaouira/2/2004(H3N8) and A/equine/Essaouira/3/2004(H3N8) were placed in the predivergent lineage indicating that like-Miami/63 strains infected equids in Morocco in 2004. This finding does not corroborate the recent studies of the H3N8 subtype of equine influenza viruses which have demonstrated that the oldest equine H3N8 strains, circulating before 1990 apparently went extinct.http://www.sciencedirect.com/science/article/pii/S2090989613000726Equine influenzaInfluenza virusPredivergence phaseEurasian lineage
spellingShingle Mohamed Boukharta
Fathiah Zakham
Altaf Aloui
Nadia Touil
Mehdi Elharrak
Moulay Mustapha Ennaji
Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
Journal of Basic and Applied Zoology
Equine influenza
Influenza virus
Predivergence phase
Eurasian lineage
title Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
title_full Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
title_fullStr Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
title_full_unstemmed Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
title_short Serological, molecular characterization and epidemiological situation of equine influenza in the Arabic Maghreb countries between 1972 to 2010
title_sort serological molecular characterization and epidemiological situation of equine influenza in the arabic maghreb countries between 1972 to 2010
topic Equine influenza
Influenza virus
Predivergence phase
Eurasian lineage
url http://www.sciencedirect.com/science/article/pii/S2090989613000726
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