Mutinda , W.; Mbuthia, P.; Njagi, L.; Bebora, L.; Nyaga, P. Pathogenicity of Kenyan Infectious Bursal Disease Virus Isolates in Indigenous Chickens. Int. J. Poult. Sci. 2019, 18 (11), 523–529. https://doi.org/10.3923/ijps.2019.523.529.