Articles

Highly contagious viral disease of poultry caused by Herpesvirus [1] mainly affects chickens causing malignant lymphomatosis. Virus has many strains varies from non-pathogenic to very virulent strains [2]. It is present worldwide causing huge economic losses. Main route of transmission is inhalation of infected skin dander and dust [3]. No vertical transmission occurs, only horizontal transmission occurs. It is characterized by peripheral enlargement and T-cell lymphomas.