Zoonosis Update on H9N2 Avian Influenza Virus

Influenza A viruses infect various mammals like human, horse, pig and birds as well. A total of 16 hemagglutinin (HA) and 9 neuraminidase (NA) subtypes have been identified. Most of the combinations are found in birds and relatively few have been isolated from mammals. Although there is no report of...

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Bibliographic Details
Published in:	Pakistan veterinary journal Vol. 33; no. 3; pp. 272 - 276
Main Author:	Abdul Ahad, Masood Rabbani, Altaf Mahmood1, Zulfiqar Hussan Kuthu2, Arfan Ahmad and Muhammad Mahmudur Rahman3
Format:	Journal Article
Language:	English
Published:	University of Agriculture, Faisalabad 01-01-2013
Subjects:	Avian Influenza Virus H9N2 Pandemic
Online Access:	Get full text
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Summary:	Influenza A viruses infect various mammals like human, horse, pig and birds as well. A total of 16 hemagglutinin (HA) and 9 neuraminidase (NA) subtypes have been identified. Most of the combinations are found in birds and relatively few have been isolated from mammals. Although there is no report of human to human transmission till to date, several cases of H5N1, H7N7 and H9N2 identified in humans since 1997 raised serious concern for health and veterinary profession. This review paper will focus H9N2 avian influenza virus (AIV) with special emphasis on zoonosis. The virus H9N2 though not highly pathogenic like H5N1 but can be virulent through antigenic drift and shift.
ISSN:	0253-8318