Quart ul Ain, Arfan Ahmad, Aftab Ahmad Anjum and Mamoona Chaudhry, 2024. Viral Shedding Evaluation is Critical for Determining Efficacy of Avian Influenza (H9) Vaccines in Broiler Chickens. Pakistan J. Zool., 56: 1569-1575. 
DOI: https://dx.doi.org/10.17582/journal.pjz/20220322040347