Features of avian infectious bronchitis and quality of poultry products

Abstract

The avian infectious bronchitis virus (IBV) population is not constant. Prevention of avian infectious bronchitis (IB) is complicated by the presence of a large number of virus serotypes that differ in antigenicity. The high genetic diversity of IBV in Moldova is explained by the high mutability of the genome and the constant use of live vaccines. It should be noted that new strains do not replace the old ones, which continue to stand out often too. And the old strains, in turn, do not disappear, but simply degenerate "mutate".