Sero-conversion of Avian Influenza Virus Subtype H₉N₂ in Non-Vaccinated Commercial Poultry Flocks

Naseem Fawad¹, Zahid Hussain¹, Sohail Manzoor^2*, Saad Rahman¹, Najam-ul-Islam¹, Muhammad Mukhtar¹, Asgher Ali¹, Halima Sadia¹, Syed Abbas Ali³, Malik Muhammad Nawaz³, Fraz Munir Khan², Farhan Afzal¹ and Muhammad Asif¹

¹Poultry Research Institute, Rawalpindi, Pakistan, E-mail: manzoorsohail76@gmail.com

²Diagnostic Laboratories, North & South Punjab, Lahore, Pakistan, E-mail: manzoorsohail76@gmail.com

³Provincial Diagnostic Laboratories, Punjab, Lahore, Pakistan, E-mail: manzoorsohail76@gmail.com

^*Corresponding Author: Sohail Manzoor, Diagnostic Laboratories, North & South Punjab, Lahore, Pakistan, Tel: +923336503982 Email: