Biological Properties Of Infectious Bursal Disease Virus

The industrial poultry industrry in Russia is characterized by the creation of large industrial enterprises of various technologial areas. Under conditions of concentration of a huge population in a limited area, rapid changes in the bioecologial niche occur, the transformation of a wide range of infectins, primarily viral etiology, the genetic evolution of viral agents in the direction of increasing pathogenicity and infectious activity. Currently, vaccination is the most effective way to preent infectious diseases of birds. However, the changes taking place in the microcosm required constant improement and the creation of new means of specific prophylaxis. This required knowledge of the biologial properties of pathogens of infectious diseases. One of the actual iral diseases of birds is infectious bursal disease. The causative agent has immunosuppressive properites, directly affects the state of the immune system and, as a result, the effectiveness of preventive and anti-epizootic measures.