1 23 Comparative Clinical Pathology ISSN 1618-5641 Comp Clin Pathol DOI 10.1007/s00580-012-1621-4 Detection of 793/B serotype of infectious bronchitis virus in tissue sample by indirect immunoperoxidase assay Mehrdad Shamsaddini-Bafti, M. Vasfi- Marandi, R. Momayez, R. Toroghi, S. A. Pourbakhsh, R. Salari & H. Tabrizchi