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Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report

OBJECTIVE: In this case report, we have investigated the infectious bronchitis (IB) virus (IBV) outbreak with the co-infection of Escherichia coli in 28–33-day-old broiler chickens in Malaysia. MATERIALS AND METHODS: A farmer complained that Cobb 500 chickens, raised in the open house, were having b...

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Autores principales: Nordin, Norhanizam, Sani, Nani Izreen Mohd, Kadir, Arifah Abdul, Shaari, Rumaizi, Mohamed, Maizan, Reduan, Mohd Farhan Hanif, Nordin, Muhammad Luqman
Formato: Online Artículo Texto
Lenguaje:English
Publicado: A periodical of the Network for the Veterinarians of Bangladesh (BDvetNET) 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8043339/
https://www.ncbi.nlm.nih.gov/pubmed/33860019
http://dx.doi.org/10.5455/javar.2021.h491
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author Nordin, Norhanizam
Sani, Nani Izreen Mohd
Kadir, Arifah Abdul
Shaari, Rumaizi
Mohamed, Maizan
Reduan, Mohd Farhan Hanif
Nordin, Muhammad Luqman
author_facet Nordin, Norhanizam
Sani, Nani Izreen Mohd
Kadir, Arifah Abdul
Shaari, Rumaizi
Mohamed, Maizan
Reduan, Mohd Farhan Hanif
Nordin, Muhammad Luqman
author_sort Nordin, Norhanizam
collection PubMed
description OBJECTIVE: In this case report, we have investigated the infectious bronchitis (IB) virus (IBV) outbreak with the co-infection of Escherichia coli in 28–33-day-old broiler chickens in Malaysia. MATERIALS AND METHODS: A farmer complained that Cobb 500 chickens, raised in the open house, were having bloody diarrhea, open mouth breathing, non-uniform growth, and ruffled feathers. The mortality was about 100 birds (from about 7000 birds) per day. The sick birds were isolated and subjected to physical examination, postmortem, and histopathological analyses. Gross lesions were observed and recorded. The lung samples have proceeded with histopathological evaluations. The lungs, kidneys, trachea, air sac, and heart samples were collected to isolate bacteria and fungi through a series of conventional cultural methods, followed by molecular confirmation of the IBV. RESULTS: Postmortem examination revealed air sacculitis, hemorrhagic tracheitis, pulmonary congestion, fibrin deposition in the liver and air sac, hemorrhagic enteritis, and renomegaly. The bacterial culture and biochemical tests revealed E. coli in the lungs, trachea, liver, intestine, and kidney samples. However, no fungus could be isolated from those samples. Histological evaluation of lung samples demonstrated infiltration of inflammatory cells in the pulmonary tissues. Apart from this, reverse transcription-polymerase chain reaction confirmed the presence of avian coronavirus responsible for infectious bronchitis (IB). CONCLUSION: The chickens were diagnosed with IB concurrent with E.coli. The chickens exhibited typical nephropathogenic strain of IBV infection, causing high mortality.
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spelling pubmed-80433392021-04-14 Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report Nordin, Norhanizam Sani, Nani Izreen Mohd Kadir, Arifah Abdul Shaari, Rumaizi Mohamed, Maizan Reduan, Mohd Farhan Hanif Nordin, Muhammad Luqman J Adv Vet Anim Res Case Report OBJECTIVE: In this case report, we have investigated the infectious bronchitis (IB) virus (IBV) outbreak with the co-infection of Escherichia coli in 28–33-day-old broiler chickens in Malaysia. MATERIALS AND METHODS: A farmer complained that Cobb 500 chickens, raised in the open house, were having bloody diarrhea, open mouth breathing, non-uniform growth, and ruffled feathers. The mortality was about 100 birds (from about 7000 birds) per day. The sick birds were isolated and subjected to physical examination, postmortem, and histopathological analyses. Gross lesions were observed and recorded. The lung samples have proceeded with histopathological evaluations. The lungs, kidneys, trachea, air sac, and heart samples were collected to isolate bacteria and fungi through a series of conventional cultural methods, followed by molecular confirmation of the IBV. RESULTS: Postmortem examination revealed air sacculitis, hemorrhagic tracheitis, pulmonary congestion, fibrin deposition in the liver and air sac, hemorrhagic enteritis, and renomegaly. The bacterial culture and biochemical tests revealed E. coli in the lungs, trachea, liver, intestine, and kidney samples. However, no fungus could be isolated from those samples. Histological evaluation of lung samples demonstrated infiltration of inflammatory cells in the pulmonary tissues. Apart from this, reverse transcription-polymerase chain reaction confirmed the presence of avian coronavirus responsible for infectious bronchitis (IB). CONCLUSION: The chickens were diagnosed with IB concurrent with E.coli. The chickens exhibited typical nephropathogenic strain of IBV infection, causing high mortality. A periodical of the Network for the Veterinarians of Bangladesh (BDvetNET) 2021-03-05 /pmc/articles/PMC8043339/ /pubmed/33860019 http://dx.doi.org/10.5455/javar.2021.h491 Text en Copyright: © Journal of Advanced Veterinary and Animal Research https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 4.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Case Report
Nordin, Norhanizam
Sani, Nani Izreen Mohd
Kadir, Arifah Abdul
Shaari, Rumaizi
Mohamed, Maizan
Reduan, Mohd Farhan Hanif
Nordin, Muhammad Luqman
Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title_full Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title_fullStr Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title_full_unstemmed Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title_short Infectious bronchitis associated with Escherichia coli infection in commercial broiler chickens: a case report
title_sort infectious bronchitis associated with escherichia coli infection in commercial broiler chickens: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8043339/
https://www.ncbi.nlm.nih.gov/pubmed/33860019
http://dx.doi.org/10.5455/javar.2021.h491
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