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Autor:
J. J. (Sjaak) de Wit, Peter De Herdt, Jane K. A. Cook, Marianna Andreopoulou, Irene Jorna, H. C. (Rik) Koopman
Publikováno v:
Avian Pathology. 51:244-256
To achieve long term protection of laying and breeding hens against aberrant egg production caused by infectious bronchitis virus (IBV), a vaccination programme incorporating both live-attenuated and inactivated IBV vaccines is required. High quality