Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016
On 14 November 2016, an outbreak of highly pathogenic avian influenza (HPA) was reported from a commercial layer farm located in Malard, Tehran Province, Iran. This study aimed to investigate the HPAI H5N8 outbreaks in Iran. The questionnaire was prepared and completed through interviews with farm o...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Razi Vaccine and Serum Research Institute
2021-03-01
|
Series: | Archives of Razi Institute |
Subjects: | |
Online Access: | https://archrazi.areeo.ac.ir/article_121531_731609b6357c215fb4e69dda78cda831.pdf |
id |
doaj-16809fd910d8486b9b033775c2918087 |
---|---|
record_format |
Article |
spelling |
doaj-16809fd910d8486b9b033775c29180872021-05-03T04:57:25Zeng Razi Vaccine and Serum Research InstituteArchives of Razi Institute 0365-34392008-98722021-03-01761172910.22092/ari.2019.124904.1291121531Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016M. H Fallah Mehrabadi0F Tehrani1A Shoushtari2A. R Bahonar3M. H Rabiee4A Ghalyanchilangeroudi5S. A Ghafouri6S Amirhajloo7Department of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Tehran, IranDepartment of Health and Management of Poultry Diseases, Iranian Veterinary Organization, Tehran, IranDepartment of Poultry Diseases, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization, Tehran, IranDepartment of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, IranDepartment of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, IranDepartment of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, IranDepartment of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University, Mashhad, IranDepartment of Health and Management of Poultry Diseases, Iranian Veterinary Organization, Tehran, IranOn 14 November 2016, an outbreak of highly pathogenic avian influenza (HPA) was reported from a commercial layer farm located in Malard, Tehran Province, Iran. This study aimed to investigate the HPAI H5N8 outbreaks in Iran. The questionnaire was prepared and completed through interviews with farm owners or field observations at the time of disease onset from November 2016 to February 2017. The HPAI H5N8 infection was confirmed in 30 different locations including 10 villages (33.3%), nine-layer farms (33%), two broiler breeder farms (6.67%), one layer breeder farm (3.3%), one turkey farm (3.3%), one partridge farm (3.3%), five national parks (16.7%), and one wetland (3.3%) in 12 provinces of Iran. The cumulative incidence rates of disease in villages, layer farms, broiler breeder farms, layer breeder farms, partridge farms, and turkey farms were 0.02%, 0.87%, 0.55%, 6.25%, 7.14%, and 0.69%, respectively. The findings reflect that among the investigated variables at infected locations, new birds entering the home in villages, live bird markets, inappropriate biosecurity conditions, transporting manure during the breeding period, close proximity of a common road to infected farms, and poultry movement inside (pullet) and outside were the most frequently observed possible risk factors for these outbreaks. In conclusion, attention should be focused on the study of the dynamics and movements of domestic poultry, investigation and modification of the structure of industrial poultry farms, training for all related people, enhancement of passive surveillance, an increase in biosecurity, raising the awareness of the authorities on the importance of the infection, and provision of the required credits and facilities.https://archrazi.areeo.ac.ir/article_121531_731609b6357c215fb4e69dda78cda831.pdfhpai h5n8iranoutbreak investigation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. H Fallah Mehrabadi F Tehrani A Shoushtari A. R Bahonar M. H Rabiee A Ghalyanchilangeroudi S. A Ghafouri S Amirhajloo |
spellingShingle |
M. H Fallah Mehrabadi F Tehrani A Shoushtari A. R Bahonar M. H Rabiee A Ghalyanchilangeroudi S. A Ghafouri S Amirhajloo Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 Archives of Razi Institute hpai h5n8 iran outbreak investigation |
author_facet |
M. H Fallah Mehrabadi F Tehrani A Shoushtari A. R Bahonar M. H Rabiee A Ghalyanchilangeroudi S. A Ghafouri S Amirhajloo |
author_sort |
M. H Fallah Mehrabadi |
title |
Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 |
title_short |
Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 |
title_full |
Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 |
title_fullStr |
Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 |
title_full_unstemmed |
Outbreak Investigation of Officially Reported and Highly Pathogenic Avian Influenza (H5N8 Subtype) in Iran During 2016 |
title_sort |
outbreak investigation of officially reported and highly pathogenic avian influenza (h5n8 subtype) in iran during 2016 |
publisher |
Razi Vaccine and Serum Research Institute |
series |
Archives of Razi Institute |
issn |
0365-3439 2008-9872 |
publishDate |
2021-03-01 |
description |
On 14 November 2016, an outbreak of highly pathogenic avian influenza (HPA) was reported from a commercial layer farm located in Malard, Tehran Province, Iran. This study aimed to investigate the HPAI H5N8 outbreaks in Iran. The questionnaire was prepared and completed through interviews with farm owners or field observations at the time of disease onset from November 2016 to February 2017. The HPAI H5N8 infection was confirmed in 30 different locations including 10 villages (33.3%), nine-layer farms (33%), two broiler breeder farms (6.67%), one layer breeder farm (3.3%), one turkey farm (3.3%), one partridge farm (3.3%), five national parks (16.7%), and one wetland (3.3%) in 12 provinces of Iran. The cumulative incidence rates of disease in villages, layer farms, broiler breeder farms, layer breeder farms, partridge farms, and turkey farms were 0.02%, 0.87%, 0.55%, 6.25%, 7.14%, and 0.69%, respectively. The findings reflect that among the investigated variables at infected locations, new birds entering the home in villages, live bird markets, inappropriate biosecurity conditions, transporting manure during the breeding period, close proximity of a common road to infected farms, and poultry movement inside (pullet) and outside were the most frequently observed possible risk factors for these outbreaks. In conclusion, attention should be focused on the study of the dynamics and movements of domestic poultry, investigation and modification of the structure of industrial poultry farms, training for all related people, enhancement of passive surveillance, an increase in biosecurity, raising the awareness of the authorities on the importance of the infection, and provision of the required credits and facilities. |
topic |
hpai h5n8 iran outbreak investigation |
url |
https://archrazi.areeo.ac.ir/article_121531_731609b6357c215fb4e69dda78cda831.pdf |
work_keys_str_mv |
AT mhfallahmehrabadi outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT ftehrani outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT ashoushtari outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT arbahonar outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT mhrabiee outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT aghalyanchilangeroudi outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT saghafouri outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 AT samirhajloo outbreakinvestigationofofficiallyreportedandhighlypathogenicavianinfluenzah5n8subtypeiniranduring2016 |
_version_ |
1721483394181758976 |