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2025, Vol: 84
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Original Article 


Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary.


Abstract
Abstract:
The protection of the commercially available vaccines was evaluated against two Egyptian variant IBV isolates that was found to be related to IS/885 variant II strain by 86% and 84% respectively in commercial broiler chickens. The protection assessment was detected by clinical signs, gross lesions, detection of viral shedding in tracheal and cloacal swabs, estimation of kidney function tests (Creatinine and Uric acid), detection of specific IBV antibody titer and histopathological examination. No significant protection could be provided against both challenging viruses using the classical live H120, Ma5 vaccines at day 1 and 14 of age respectively. Also no significant protection could be provided using 2 different inactivated vaccines at day 5 of age. The results indicated that the used vaccine strains and the challenging IBV field isolates are not the same protecteotype, therefore, change in the program of field vaccination is required to obtain a relative improvement of protection.

Key words: Bronchitis Virus, Broiler, Protection.


 
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Pubmed Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. AJVS. 2018; 57(1): 98-105. doi:10.5455/ajvs.262346

Web Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. https://www.alexjvs.com/?mno=262346 [Access: December 02, 2024]. doi:10.5455/ajvs.262346

AMA (American Medical Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. AJVS. 2018; 57(1): 98-105. doi:10.5455/ajvs.262346


Vancouver/ICMJE Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. AJVS. (2018), [cited December 02, 2024]; 57(1): 98-105. doi:10.5455/ajvs.262346


Harvard Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary (2018) Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. AJVS, 57 (1), 98-105. doi:10.5455/ajvs.262346


Turabian Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. 2018. Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. Alexandria Journal of Veterinary Sciences, 57 (1), 98-105. doi:10.5455/ajvs.262346


Chicago Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. "Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines." Alexandria Journal of Veterinary Sciences 57 (2018), 98-105. doi:10.5455/ajvs.262346


MLA (The Modern Language Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary. "Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines." Alexandria Journal of Veterinary Sciences 57.1 (2018), 98-105. Print. doi:10.5455/ajvs.262346


APA (American Psychological Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Madiha S. Ibrahim, Abd El-naby Y. Tahoun, Ahmed R. Elbestawy, Hosam K. Elgohary (2018) Evaluation of Protection Spectrum Provided Against Two Infectious Bronchitis Virus Isolates Using Some Commercially Available Vaccines. Alexandria Journal of Veterinary Sciences, 57 (1), 98-105. doi:10.5455/ajvs.262346




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    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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    Egypt.

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