1. Department of Epidemiological Sciences Animal and Plant Health Agency Addlestone Surrey UK
2. Bacteriology Department Animal and Plant Health Agency Addlestone Surrey UK
3. Animal and Plant Health Agency – Starcross Exeter Devon UK
4. Cryptosporidium Reference Unit, Public Health Wales, Microbiology and Health Protection Singleton Hospital Swansea UK
5. Swansea University Medical School, Swansea University Swansea UK