Infectious Bronchitis has been always a big challenge in prevention and control the disease. The intensive farming tech. has added and increased the bio burden to a level that almost every flock gets exposed to it. The early exposure to immunosuppressive agents adds to increase the severity of the disease. The problem has also been observed all over the world including US, which has more severity than rest. The common techniques used over there is use of auto vaccines, has also been of little help. The disease needs to be addressed judiciously with all care, taking utmost care at biosecurity, control of immunosuppressive agents, serological (antibody) monitoring and vaccination and subsequent monitoring of same.
Does the h9n2 play role to increase the lose of I.b and how to early controle to early lnfection of h9n2?