ISOLATION AND CHARACTERIZATION OF AVIAN INFLUENZA (H9N2) VIRUS FROM AN OUTBREAK AT POULTRY FARMS IN KARACHI

ISOLATION AND CHARACTERIZATION OF AVIAN INFLUENZA (H9N2) VIRUS FROM AN OUTBREAK AT POULTRY FARMS IN KARACHI

Avian influenza virus (AIV) type H9N2 was isolated from poultry flocks which were suffering from acute respiratory illness in Karachi area. High haemagglutination inhibition (HI) titers against AIV virus type H9N2, ranging from 6.38 to 7.81, in the convalescent sera of birds were demonstrated. The i...

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Veröffentlicht in:Pakistan veterinary journal 2001-02, Vol.21 (2), p.87-91
1. Verfasser: Mohammad A. Muneer, Ali Mohammad Bahram, Zahid Munir, I. Hussain, K. Muhammad, Masood Rabbani, S. Akhtar, M. Aleem, Bakht Sultan1, Munir A. Tariq and K. Naeem2
Format: Artikel
Sprache:eng
Schlagworte:
Avian influenza
Haemagglutination inhibition
Karachi
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Zusammenfassung:Avian influenza virus (AIV) type H9N2 was isolated from poultry flocks which were suffering from acute respiratory illness in Karachi area. High haemagglutination inhibition (HI) titers against AIV virus type H9N2, ranging from 6.38 to 7.81, in the convalescent sera of birds were demonstrated. The infected flocks had mortality between 30 to 80 per cent. Those flocks also had considerable of HI titres against infectious bronchitis (IB) virus stains D274 and D1466, against which they were never vaccinated. It is believed that AI H9N2 virus in collaboration with IBV and some unidentified bacterial species caused high mortality in the infected flocks
ISSN:0253-8318