Charting predominant IB strains in EMEA

Infectious bronchitis poses an on-going risk to the global poultry ?industry. In nearly every country, field ?viruses of various serotypes and ?genotypes challenge chicken flocks, rendering vaccination a compulsory part of the veterinary health ?management programme. Field strains circulating regionally and locally throughout the world are observed to vary significantly, with subsequent consequences for vaccination strategies. This is the first of an on-going series of articles that reports on o