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Information Journal Paper

Title

ENGLISH: Molecular Monitoring of D1466 Genotype of Avian Infectious Bronchitis Virus in Iran: A Retrospective Study in 2013-2017 (FRENCH: Surveillance Molé culaire du Gé notype D1466 du Virus de la Bronchite Infectieuse Aviaire en Iran: une É tude Ré trospective en 2013-2017)

Pages

  163-168

Abstract

 ENGLISH: Infectious bronchitis is one of the most common diseases in the poultry industry in many countries, especially in the regions with a dense poultry farming industry. Gammacoronavirus is the etiologic agent of this disease, with the chickens and poultries as the natural reservoirs of the virus. Various strains of infectious bronchitis virus have been reported in poultry around the world. In terms of pathogenicity, this virus can induce a spectrum of diseases ranging from the moderate respiratory tract to kidney and reproductive diseases. The serotypes of this virus do not cause cross-immunity against each other. This issue makes it difficult to control the disease. Based on the analysis of the highly variable region of the glycoprotein S1 gene, the isolated strains in Iran were classified into seven different phylogenetic groups, including Massachusetts, QX, IS-720, IS-1494, 793/B, IR-1, and IR-2. The D1466 genotype has not been reported in the country; however, the killed vaccine is used in broiler breeder farms. In this study, tissue specimens were collected from 700 farms (i. e., broiler, egg-laying, and broiler breeder farms) suspected of infectious bronchitis within 2013-2017. The samples were examined using real-time reverse transcription-polymerase chain reaction. The D1466 genotype was not detected in any of the studied specimens. Due to the lack of immunity of the D1466 serotype against the dominant types in the country, one has to be careful in choosing the right vaccine. It is necessary to perform continuous monitoring of the circulation status of the various serotypes of viruses in the country to identify the dominant and possible new serotypes for the utilization of the appropriate vaccine. FRENCH: Ré sumé : La bronchite infectieuse est l'une des maladies les plus courantes dans l'industrie de la volaille dans de nombreux pays, en particulier dans les ré gions où l'industrie de l'é levage de volaille est dense. Le gammacoronavirus est l'agent é tiologique de cette maladie, les poulets et les volailles é tant les ré servoirs naturels du virus. Diverses souches de virus de la bronchite infectieuse ont é té signalé es chez les volailles du monde entier. En termes de pathogé nicité , ce virus peut induire un spectre de maladies allant des voies respiratoires modé ré es aux maladies ré nales et reproductives. Les sé rotypes de ce virus ne provoquent pas d'immunité croisé e les uns contre les autres. Ce problè me rend difficile le contrô le de la maladie. Sur la base de l'analyse de la ré gion hautement variable du gè ne de la glycoproté ine S1, les souches isolé es en Iran ont é té classé es en sept groupes phylogé né tiques diffé rents, dont le Massachusetts, QX, IS-720, IS-1494, 793/B, IR-1, et IR-2. Le gé notype D1466 n'a pas é té signalé dans le pays; cependant, le virus inactivé est utilisé dans les fermes d'é levage de poulets de chair. Dans cette é tude, des é chantillons de tissus ont é té pré levé s de 700 fermes (c.-à-d. les Fermes d'é levage de poulets de chair, de poules pondeuses, et de poulets reproducteurs) soupç onné es de bronchite infectieuse en 2013-2017. Les é chantillons ont é té examiné s en utilisant une transcription inverse-ré action en chaî ne par polymé rase (TI-RCP) en temps ré el. Le gé notype D1466 n'a é té dé tecté dans aucun des é chantillons é tudié s. En raison du manque d'immunité du sé rotype D1466 contre les types dominants dans le pays, il faut ê tre prudent dans le choix du bon vaccin. Il est né cessaire d'effectuer une surveillance continue de l'é tat de circulation des diffé rents sé rotypes de virus dans le pays pour identifier les nouveaux sé rotypes dominants et possibles pour l'utilisation du vaccin approprié .

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    APA: Copy

    KHALTABADI FARAHANI, R., GHALYANCHI LANGEROUDI, A., FALLAH MEHRABADI, M.H., GHAFOURI, S.A., & MAGHSOUDLOO, H.. (2020). ENGLISH: Molecular Monitoring of D1466 Genotype of Avian Infectious Bronchitis Virus in Iran: A Retrospective Study in 2013-2017 (FRENCH: Surveillance Molé culaire du Gé notype D1466 du Virus de la Bronchite Infectieuse Aviaire en Iran: une É tude Ré trospective en 2013-2017). ARCHIVES OF RAZI INSTITUTE, 75(2), 163-168. SID. https://sid.ir/paper/785521/en

    Vancouver: Copy

    KHALTABADI FARAHANI R., GHALYANCHI LANGEROUDI A., FALLAH MEHRABADI M.H., GHAFOURI S.A., MAGHSOUDLOO H.. ENGLISH: Molecular Monitoring of D1466 Genotype of Avian Infectious Bronchitis Virus in Iran: A Retrospective Study in 2013-2017 (FRENCH: Surveillance Molé culaire du Gé notype D1466 du Virus de la Bronchite Infectieuse Aviaire en Iran: une É tude Ré trospective en 2013-2017). ARCHIVES OF RAZI INSTITUTE[Internet]. 2020;75(2):163-168. Available from: https://sid.ir/paper/785521/en

    IEEE: Copy

    R. KHALTABADI FARAHANI, A. GHALYANCHI LANGEROUDI, M.H. FALLAH MEHRABADI, S.A. GHAFOURI, and H. MAGHSOUDLOO, “ENGLISH: Molecular Monitoring of D1466 Genotype of Avian Infectious Bronchitis Virus in Iran: A Retrospective Study in 2013-2017 (FRENCH: Surveillance Molé culaire du Gé notype D1466 du Virus de la Bronchite Infectieuse Aviaire en Iran: une É tude Ré trospective en 2013-2017),” ARCHIVES OF RAZI INSTITUTE, vol. 75, no. 2, pp. 163–168, 2020, [Online]. Available: https://sid.ir/paper/785521/en

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