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Ubiquity of infectious bursal disease in East Texas backyard flocks
Poultry Science
|August 1, 1980
Abstract:
Sera from 25 "backyard" flocks were screened by agar-gel precipitin (AGP) and virus-neutralization (VN) tests for antibodies to infectious bursal disease virus. Although titers varied from flock to flock, 100% of the birds screened had virus-neutralizing antibodies. In general, birds with high VN titers had positive AGP reaction.