Molecular characterization of infectious bronchitis viruses isolated from broiler and layer chicken farms in Egypt during 2012

This study indicates existence of two variant groups of IBV circulating in Egypt during 2012. Group I was similar but distinguishable from Israeli variant IS/885 and group II was related to 4/91 and CR/88121 vaccine strains. There was no geographical link between the 2 groups as they were distributed all over the country. These findings necessitate the need to revise the vaccination programs and control measures for IBV.
Source: International Journal of Veterinary Science and Medicine - Category: Veterinary Research Source Type: research