The antiviral activity of plants Glyceriza glabra (roots), Phyllanthus amblicus (Fruit), Eugenia jamolana (Leaves), and Moringa oleifera (Leaves) were evaluated against Infectious bursal disease virus (IBDv) in this study. Ethanolic extraction of these plants was carried out by using Soxhlet apparatus. Four dilutions of each extracts viz 100, 50, 25 and 12.5 g/ml were made. Vero cells were infected by identified infectious bursal disease for antiviral assay. Dilutions of these extracts were applied in triplicate manner on Vero cells (infected by IBDv), that are confluent in 96 well cell...