Searching journal content for articles similar to Shedding pattern of classical and variant strain of IB challenge virus in SPF and commercial layer vaccinated chicken with trivalent vaccine containing H9N2 AI, LaSota, classical M41 and var 2 IB viruses
Hanan Sayed 1, Mohamed S. Madkour 1, Hussein A. Hussein 2, Ahmed A El-Sanousi 2
