Animal Waste, Water Quality and Human Health

Comparative risk analysis 395Table A10.1 (Continued)Reference Prevalence (%) Concentration NotesWeijtens et al. (1997) – 10 3.6 –10 5 cfu/g Five samples. Shedding dominated by C.coli, less infectious to humanscf. C. jejuniSheepAçik & Cetinkay (2006) 49.5 – Intestinal contents, gall bladders and faecesfrom 610 healthy sheepBrown et al. (2004) 25 – Rural Cheshire, UK, for C. jejuni; 21%positive for C. coliDevane et al. (2005) 59.8 – New Zealand dairy cattle (52/66 positive forC. jejuni)Hutchison et al. (2004/5) 20.8 390 cfu/g (g.m.) Fresh composite farm manure, UK. Max. =2100 cfu/gRotariu et al. (2009) 22 2.7 × 10 4 cfu/g Cattle vs. sheep. No statistically significantdifference in prevalence or averageconcentrations for cattle or sheep betweenhosts or regions in Scotland.25 2.0 × 10 5 cfu/gStanley et al. (1998b) 91.7 10 4 –10 7 MPN/g Thermophilic Campylobacter in lambs. Seealso Skelly & Weinstein (2003)29.3 – Adult sheepPoultryCox et al. (2002) – 10 2.8 –10 3.9 cfu/g Breeders: composite samples from 35 farms– 10 3.5 –10 6.5 cfu/g Broilers: composite samples from 35 farms(Continued)