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A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece
Infectious laryngotracheitis is an economically significant viral disease of chickens, that mainly affects the upper respiratory tract, and is present worldwide. This case reports the first outbreak of infectious laryngotracheitis in a four-week-old organic broiler farm and surrounding flocks in Gre...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073223/ https://www.ncbi.nlm.nih.gov/pubmed/33923535 http://dx.doi.org/10.3390/vetsci8040064 |
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author | Tsiouris, Vasileios Mavromati, Natalia Kiskinis, Konstantinos Mantzios, Tilemachos Homonnay, Zalan G. Mato, Tamas Albert, Mihaly Kiss, Istvan Georgopoulou, Ioanna |
author_facet | Tsiouris, Vasileios Mavromati, Natalia Kiskinis, Konstantinos Mantzios, Tilemachos Homonnay, Zalan G. Mato, Tamas Albert, Mihaly Kiss, Istvan Georgopoulou, Ioanna |
author_sort | Tsiouris, Vasileios |
collection | PubMed |
description | Infectious laryngotracheitis is an economically significant viral disease of chickens, that mainly affects the upper respiratory tract, and is present worldwide. This case reports the first outbreak of infectious laryngotracheitis in a four-week-old organic broiler farm and surrounding flocks in Greece, with typical clinical symptoms and lesions, allegedly provoked by a wild strain of infectious laryngotracheitis virus. Our findings contradict the general perception indicating that the disease appears mainly in older birds and that vaccine strains are the primary cause of infectious laryngotracheitis outbreaks in most continents. A recombinant vectored vaccine was administered, supplementary to biosecurity measures, containing the viral spread. The responsible strain was potentially circulating in the area; therefore, an industry-wide holistic approach was applied, including the vaccination of neighboring broilers and breeders with the same vaccine, the rapid molecular diagnosis of the disease, and strict biosecurity protocols. The results of this holistic effort were effective because, following the application of vaccine and management protocols, manifestations of the disease in regional flocks dropped significantly, and there was no recurrence to date. These findings suggest that vaccination protocols should be modified, especially for organic broilers, to include vaccination against infectious laryngotracheitis. |
format | Online Article Text |
id | pubmed-8073223 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80732232021-04-27 A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece Tsiouris, Vasileios Mavromati, Natalia Kiskinis, Konstantinos Mantzios, Tilemachos Homonnay, Zalan G. Mato, Tamas Albert, Mihaly Kiss, Istvan Georgopoulou, Ioanna Vet Sci Case Report Infectious laryngotracheitis is an economically significant viral disease of chickens, that mainly affects the upper respiratory tract, and is present worldwide. This case reports the first outbreak of infectious laryngotracheitis in a four-week-old organic broiler farm and surrounding flocks in Greece, with typical clinical symptoms and lesions, allegedly provoked by a wild strain of infectious laryngotracheitis virus. Our findings contradict the general perception indicating that the disease appears mainly in older birds and that vaccine strains are the primary cause of infectious laryngotracheitis outbreaks in most continents. A recombinant vectored vaccine was administered, supplementary to biosecurity measures, containing the viral spread. The responsible strain was potentially circulating in the area; therefore, an industry-wide holistic approach was applied, including the vaccination of neighboring broilers and breeders with the same vaccine, the rapid molecular diagnosis of the disease, and strict biosecurity protocols. The results of this holistic effort were effective because, following the application of vaccine and management protocols, manifestations of the disease in regional flocks dropped significantly, and there was no recurrence to date. These findings suggest that vaccination protocols should be modified, especially for organic broilers, to include vaccination against infectious laryngotracheitis. MDPI 2021-04-16 /pmc/articles/PMC8073223/ /pubmed/33923535 http://dx.doi.org/10.3390/vetsci8040064 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Case Report Tsiouris, Vasileios Mavromati, Natalia Kiskinis, Konstantinos Mantzios, Tilemachos Homonnay, Zalan G. Mato, Tamas Albert, Mihaly Kiss, Istvan Georgopoulou, Ioanna A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title | A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title_full | A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title_fullStr | A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title_full_unstemmed | A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title_short | A Case of Infectious Laryngotracheitis in an Organic Broiler Chicken Farm in Greece |
title_sort | case of infectious laryngotracheitis in an organic broiler chicken farm in greece |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073223/ https://www.ncbi.nlm.nih.gov/pubmed/33923535 http://dx.doi.org/10.3390/vetsci8040064 |
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