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ISSN 2311-3219 - An International Triannual Journal
SCIENCE LETTERS
2021 | Volume 9 | Issue 1
Veterinary / Animal Sciences  |  Review article  |  https://doi.org/10.47262/SL/9.1.132021005
Effect of Avian Influenza H9N2 Subtype Virus Infection on Backyard Poultry Production

Mirwaise Khan 1, Mamoona Chaudhry 2, Zeeshan Fatima 2, Rahat Ullah Khan 3, Baseer Ahmad 4*, Rahman Ullah 5, Aimal Khan 6

1 Department of Epidemiology and Public Health, Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
2 Disease Surveillance Laboratory, Department of Epidemiology and Public Health, University of Veterinary and Animal Sciences, Lahore, Pakistan
3 Institute of Microbiology, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
4 Department of Animal Nutrition, Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
5 Department of Dairy Technology, Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
6 Livestock and Dairy Development Department, Balochistan, Pakistan


Abstract
Avian influenza is a viral pandemic disease of humans and birds, including commercial and house poultry. Avian influenza is a major concern around the world, which causes serious economic losses in the poultry industry, mainly in home backyard poultry. The backyard poultry is the potential source of income for rural people and indirectly contributes to decreasing the poverty of household women. Besides, in many developing countries, villagers full fill a part of their food demand by the backyard poultry; however, this sector is directly affected by biosecurity risks, including high and low pathogenic avian influenza infections like avian influenza H9N2 subtype. Avian influenza H9N2 subtype has low pathogenic zoonotic importance but still causes serious threats to the poultry industry. The backyard poultry industry is directly affected by this infection due to direct contact with wild migratory birds locating in different regions of the world. Antigenic drift and shift are one of the major conflicts of this infection resulting from a few days to a few months up to many years and also the main reason for the uncontrollable mutation in this infection. All over the world, there is no serious action taken to prevent the H9N2 subtype infection in backyard poultry. This situation has become severe because of the widespread of highly pathogenic avian influenza viruses in the past few years.

A R T I C L E  I N F O

Received
January 14, 2021
Revised
March 11, 2021
Accepted
March 15, 2021
Published
April 16, 2021

*Corresponding Author
Baseer Ahmad
E-mail
dr.baseerahmadkhan@gmail.com

  Keywords
Avian influenza
Backyard poultry
Biosecurity risk
H9N2 subtype
Rural people






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