Abstract
A nationwide multi-locus sequence typing (MLST) survey was implemented to analyze patterns of host association among Campylobacter jejuni and Campylobacter coli isolates from clinical disease in Scotland (July 2005-September 2006), food animals (chickens, cattle, sheep, pigs and turkey), non-food animals (wild birds) and the environment. Sequence types (STs) were determined for 5247 clinical isolates and 999 from potential disease sources (augmented with 2420 published STs). Certain STs were over represented among particular sample sets/host groups. These host-associated STs were identified for all sample groups in both Campylobacter species and host associated clonal complexes (groups of related STs) were characterized for C. jejuni. Some genealogical lineages were present in both human disease and food animal samples. This provided evidence for the relative importance of different infection routes/food animal sources in human disease. These results show robust associations of particular genotypes with potential infection sources supporting the contention that contaminated poultry is a major source of human disease.
Original language | English |
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Pages (from-to) | 96-103 |
Number of pages | 8 |
Journal | International Journal of Food Microbiology |
Volume | 134 |
Issue number | 1-2 |
Early online date | 20 Feb 2009 |
DOIs | |
Publication status | Published - 31 Aug 2009 |
Funding
We thank the following for their participation in the collection of bacterial isolates: the National Health Service of Scotland (NHSS) diagnostic laboratories and Consultants in Public Health Medicine; Staff of Aberdeen University and NHSS; local farmers; Local Authorities Coordinators of Regulatory Services; the veterinary laboratories of the Scottish Agricultural College and the University of Glasgow; animal rescue centres and wildlife reserves; postgraduate research students and visiting research students. This work was funded by the Food Standards Agency of Scotland. MCJM is a Wellcome Trust Senior Research Fellow.
Keywords
- Campylobacter coli
- Campylobacter jejuni
- Host association
- MLST
ASJC Scopus subject areas
- Food Science
- Microbiology
- Safety, Risk, Reliability and Quality