1. Bacteriology and Food Safety Dept.Animal and Plant Health Agency (APHA – Weybridge), Woodham Lane New Haw Addlestone KT15 3NB UK
2. Pathology and Infectious Diseases Dept., School of Veterinary MedicineFaculty of Health and Medical Sciences Vet School Main Building, Daphne Jackson Rd., Univ. of Surrey Guildford GU2 7AL UK