Effect of infectious bursal disease virus on response of turkeys to infection by avian influenza virus (H9N2)

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Hashemzade f.; MAYAHI M.; Shoshtary a.h.; SEYFI ABAD SHAPOURI M.R.; Gourbanpoor m.

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Journal: Journal of Veterinary Research Year:2017 | Volume:72 | Issue:3 Page(s): 341-346

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Title

Effect of infectious bursal disease virus on response of turkeys to infection by avian influenza virus (H9N2)

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Keywords

turkeyQ2

avian influenzaQ4

IBDQ1

immunosuppressionQ1

Abstract

BACKGROUND: Infection by infectious bursal disease virus (IBDV) in turkeys may lead to immunosuppression effects and therefore turkeys could not resist against pathogenic or less pathogenic agents. OBJECTIVE: The aim of present study was to examine the effects of IBDV on response of turkey’ s poults to avian influenza virus (AIV). METHODS: A total of 100 day-old poults were divided randomly into 4 equal groups. Groups 1 and 2 were infected with 104CID50 of IBDV by oral route at 1 day of age; groups 1 and 3 were infected with 106 EID50 of AIV (H9N2) by the oculo-nasal route at day 30. Poults of group 4 were kept as uninfected control group. All groups were vaccinated with Newcastle disease virus (NDV) vaccine. Blood samples via wing web were collected at days 0, 30, 37, 44, 51 and 58 and anti-NDV and anti-AIV serum titers were measured by HI test. At days 33 and 41 three poults of each group were euthanized and their splenic lymphocytes proliferation repose to phytohaemagglutinin was assessed. RESULTS: Influenza clinical signs were prolonged and more intensive in group 1 than group 3. The mean HI titers to NDV were significantly lower in group 1 than group 3, in all sampling times, but anti-AIV titers were significantly lower in group 1 compared to group 3 from days 14 AIV (H9N2) post infection. The lymphocyte proliferation assay with PHA did not show any differences between groups 1 and 3. CONCLUSIONS: IBDV suppresses immune response in turkey and causes prolonged and more intensive clinical signs after challenge with AIV.

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APA: Copy

Hashemzade, f., MAYAHI, M., Shoshtary, a.h., SEYFI ABAD SHAPOURI, M.R., & Gourbanpoor, m.. (2017). Effect of infectious bursal disease virus on response of turkeys to infection by avian influenza virus (H9N2). JOURNAL OF VETERINARY RESEARCH, 72(3 ), 341-346. SID. https://sid.ir/paper/34727/en

Vancouver: Copy

Hashemzade f., MAYAHI M., Shoshtary a.h., SEYFI ABAD SHAPOURI M.R., Gourbanpoor m.. Effect of infectious bursal disease virus on response of turkeys to infection by avian influenza virus (H9N2). JOURNAL OF VETERINARY RESEARCH[Internet]. 2017;72(3 ):341-346. Available from: https://sid.ir/paper/34727/en

IEEE: Copy

f. Hashemzade, M. MAYAHI, a.h. Shoshtary, M.R. SEYFI ABAD SHAPOURI, and m. Gourbanpoor, “Effect of infectious bursal disease virus on response of turkeys to infection by avian influenza virus (H9N2),” JOURNAL OF VETERINARY RESEARCH, vol. 72, no. 3 , pp. 341–346, 2017, [Online]. Available: https://sid.ir/paper/34727/en

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