Induction of cystic oviducts and protection against early challenge with infectious bronchitis virus serotype D388 (genotype QX) by maternally derived antibodies and by early vaccination

Since the end of 2003, strains of the D388 serotype (QX genotype) of infectious bronchitis virus (IBV) have caused considerable damage to the Dutch poultry industry. In order to better understand the pathogenesis of infection caused by this infectious bronchitis variant and to be able to support the poultry industry with substantiated advice to prevent or decrease the damage caused by the D388 strain, several vaccination and challenge...