Moroccan Journal of Agricultural and Veterinary Sciences

Vol. 9 No. 3 (2021): (Poultry farming - September 2021)
Poultry Viral Pathologies

Prevalence of avian infectious bronchitis disease in Morocco between June 2018 and April 2019

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  • Fatima-zohra SIKHT,
  • Christelle CAMUS,
  • Mariette DUCATEZ,
  • Mehdi KRAIMI,
  • Charifa DRISSI TOUZANI,
  • Nour-Said TLIGUI,
  • Mohammed EL HOUADFI,
  • Siham FELLAHI
Fatima-zohra SIKHT 1Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc
Christelle CAMUS IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
Mariette DUCATEZ IHAP, Université de Toulouse, INRAE, ENVT, Toulouse, France
Mehdi KRAIMI Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc
Charifa DRISSI TOUZANI Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc
Nour-Said TLIGUI Unité Anatomo-pathologique, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc
Mohammed EL HOUADFI Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc
Siham FELLAHI Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, Institut Agronomique et Vétérinaire Hassan II, Rabat, Maroc

Published 2021-09-15

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Abstract

Avian infectious bronchitis (IB) is mainly an upper respiratory tract infection caused by infectious bronchitisvirus (IBV) belonging to the Coronaviridae family. This work aims to assess the prevalence of IBV in different regions of Morocco using real-time RT-PCR, in order to better understand the epidemiological situation of the disease in these regions. Epidemiological analyses have shown that the IBV circulates with a high prevalence of 61% between 2018 and 2019, thus, the results obtained were valued and evaluated by a statistical study using the SPSS version 13 (Statistical Package for the Social Sciences). IB circulated with distinct prevalence’s in the different regions of Morocco, but this difference was not statistically significant. A peak of positivity was found in the BeniMellal-Khenifra, Draa-Tafilalet, and Souss-Massa regions. On the other hand, a very high vaccination rate against IB (90% of farms) in Morocco has been observed.

Keywords: Avian infectious bronchitis, real-time RT-PCR, Prevalence, Morocco

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References