Prevalence and risk factors of viral diseases in broiler farms contracted to multifactorial respiratory syndrome

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Published: Apr 18, 2025
DOI: https://doi.org/10.12681/jhvms.36340
Keywords:
Newcastle Disease Infectious Bronchitis Avian Influenza H9N2 Broiler Epidemiology
MH Fallah Mehrabadi
Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
A Moluoki
Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
M Bashashati
Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
MH Rabiee
Department of Epidemiology, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
A Ghalyanchilangeroudi
Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
A Shoushtari
Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
N Motamed
Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran. Iran
Abstract

Newcastle, Influenza H9N2 and Infectious Bronchitis are the major respiratory diseases in broiler poultry farming in Iran. This study aims to investigate prevalence and risk factors of these viral diseases in commercial broiler chicken farms contracted to multi-factorial respiratory syndrome in Iran. In this cross-sectional study, 157 affected commercial broiler chicken farms in Iran were sampled during 2017 to 2019. Samples were examined for avian influenza H9N2, Newcastle, and infectious bronchitis by performing reverse transcription polymerase chain reaction. Possible risk factors for the occurrence of viral diseases were investigated by comparing the mean and frequency of the factors, as well as performing univariate and multivariate regression analysis. Highest frequency of investigated viral diseases was due to Newcastle disease with 98 cases (62.43%, CI 95%= 54.35-70.01). Frequency of avian influenza H9N2 and infectious bronchitis was respectively 74 cases (47.13%, CI 95%= 39.13-55.25) and 22 cases (14.1%, CI 95%= 8.99-20.44). Flock age (Odd Ratio: 2.65, P value: 0.030) and first week mortality (Odd Ratio: 10.12, P value: 0.014) respectively had significant effect on occurrence of influenza H9N2 and co-infection of influenza H9N2. Control strategies must be implemented on the broiler farms. Continuous monitoring of the farms and investigation of the the farm vaccination programs every year are among the necessary control strategies measures and must be implemented.

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References
Ahmadi K, Ebadzadeh HR, Mohammadnia Afruzi S, Taghani RA, Saadat
Akhtar A. (2014).Review the ptoduction process of protein products
in the country in four decades (1974 to2013). Tehran, Iran: Center for
Information and Communication Technology.
Saif YM, Swayne DE, Pantin-Jackwood MJ, Spackman E, Johnson TJ,
Day JM, et al. Emerging Diseases and Diseases of Complex or Unknown
Etiology. Diseases of Poultry2020. p. 1383-410.
Nili H, Asasi K. (2002). Natural cases and an experimental study of H9N2
avian influenza in commercial broiler chickens of Iran. Avian Pathol.
(3):247-52.
Fallah Mehrabadi MH, Ghalyanchilangeroudi A, Rabiee MH, Tehrani F.
(2019a). Prevalence and risk factors of avian influenza H9N2 among
backyard birds in Iran in 2015. Asian Pacific Journal of Tropical Medicine.
(12).
Hosseini H, Fard MH, Charkhkar S, Morshed R. (2015). Epidemiology
of Avian Infectious Bronchitis Virus Genotypes in Iran (2010-2014).
Avian Dis. 59(3):431-5.
Ebadzadeh HR, Ahmadi K, Mohammadnia Afruzi S, Taghani RA, Moradi
Eslami A, Yari SMA. (2015).Agricultural statistics. Tehran, Iran:
Center for Information and Communication Technology.
Monne I, Ormelli S, Salviato A, De Battisti C, Bettini F, Salomoni A, et
al. (2008). Development and validation of a one-step real-time PCR
assay for simultaneous detection of subtype H5, H7, and H9 avian
influenza viruses. J Clin Microbiol. 46(5):1769-73.
Callison SA, Hilt DA, Boynton TO, Sample BF, Robison R, Swayne DE,
et al. (2006). Development and evaluation of a real-time Taqman RTPCR
assay for the detection of infectious bronchitis virus from infected
chickens. J Virol Methods. 138(1-2):60-5.
Creelan JL, Graham, D.A., and McCullough, S.J., . (2002). Detection and
differentiation of pathogenicity of avian paramyxovirus serotype 1
from field cases using one-step reverse transcriptase-polymerase
chain reaction,. Avian Pathology. 31:493-9.
Loa CC, Lin, T.L., Wu, C.C., Bryan, T.A., Hooper, T.A., and Schrader,
D.L., . (2006). Differential detection of turkey coronavirus, infectious
bronchitis virus, and bovine coronavirus by a multiplex polymerase
chain reaction. Journal of Virological Methods. 131:86-91.
Lee MS, Chang PC, Shien JH, Cheng MC, Shieh HK. (2001). Identification
and subtyping of avian influenza viruses by reverse transcription-
PCR. J Virol Methods. 97(1-2):13-22.
Qiu BF, Liu WJ, Peng DX, Hu SL, Tang YH, Liu XF. (2009). A reverse
transcription-PCR for subtyping of the neuraminidase of avian influenza
viruses. J Virol Methods. 155(2):193-8.
Fallah Mehrabadi MH, Ghalyanchi Langeroudi A, Bahonar A, Rabiee
MH, Tehrani F, Amirhajloo S, et al. (2019b). Prevalence of Avian Influenza
in Live Bird Markets, Bird Gardens, and Zoos in Iran in 2015:
A Cross-sectional Study. Archives of Razi Institute. 74(3):243-50.
Hadipour M, Golchin P. (2011). Serosurvey of H9N2 avian influenza virus
during respiratory disease outbreaks in broiler flocks in Dezful,
southern Iran. Bulg J Vet Med. 14:62-5.
Hosseini H, Langeroudi AG, Torabi R. (2014). Molecular characterization
and phylogenetic study of Newcastle disease viruses isolated in Iran,
-2012. Avian Dis. 58(3):373-6.
Hassan KE, Shany SA, Ali A, Dahshan AH, El-Sawah AA, El-Kady MF.
(2016). Prevalence of avian respiratory viruses in broiler flocks in
Egypt. Poult Sci. 95(6):1271-80.
Wajid A, Dimitrov KM, Wasim M, Rehmani SF, Basharat A, Bibi T, et al.
(2017). Repeated isolation of virulent Newcastle disease viruses in
poultry and captive non-poultry avian species in Pakistan from 2011
to 2016. Prev Vet Med. 142:1-6.
Miller PJ, Haddas R, Simanov L, Lublin A, Rehmani SF, Wajid A, et al.
(2015). Identification of new sub-genotypes of virulent Newcastle
disease virus with potential panzootic features. Infect Genet Evol.
:216-29.
Awan MA, Otte MJ, James AD. (1994). The epidemiology of Newcastle
disease in rural poultry: a review. Avian Pathol. 23(3):405-23.
Cameron KR, Gregory V, Banks J, Brown IH, Alexander DJ, Hay AJ, et al. (2000). H9N2 subtype influenza A viruses in poultry in pakistan
are closely related to the H9N2 viruses responsible for human infection
in Hong Kong. Virology. 278(1):36-41.
Lee DH, Swayne DE, Sharma P, Rehmani SF, Wajid A, Suarez DL, et
al. (2016). H9N2 low pathogenic avian influenza in Pakistan (2012-
. Vet Rec Open. 3(1):e000171.
Bashashati M, Vasfi Marandi M, Sabouri F. (2013). Genetic diversity of
early (1998) and recent (2010) avian influenza H9N2 virus strains
isolated from poultry in Iran. Arch Virol. 158(10):2089-100.
Pourbakhsh SA, Momayez R, Toroghi R R, Shoushtari AH. (2008). Ninetythree
B type, the Predominant Circulating Type of Avian Infectious
Bronchitis Viruses 1999 - 2004 in Iran: a retrospective study. Archives
of Razi Institute. 63(1):1-5.
Seger W, GhalyanchiLangeroudi A, Karimi V, Madadgar O, Marandi
MV, Hashemzadeh M. (2016). Genotyping of infectious bronchitis
viruses from broiler farms in Iraq during 2014-2015. Arch Virol.
(5):1229-37.
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