1. Teagasc, Food Research Centre; Ashtown Ireland
2. UCD Veterinary Sciences Centre; University College Dublin; Dublin Ireland
3. Department of Science; Waterford Institute of Technology; Waterford Ireland
4. Teagasc, Pig Development Department; Fermoy, Co. Cork Ireland
5. School of Medicine; National University of Ireland Galway; Galway Ireland
6. National Salmonella Shigella Listeria Reference Laboratory Service; Galway University Hospital; Galway Ireland