Four steps to risk assessment of Campylobacter contamination in broiler production in Serbia
2012
Petrović, Jelena M. (Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)) | M.Stojanov, Igor (Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)) | Milanov, Dubravka S. (Scientific Veterinary Institute, Novi Sad (Serbia)) | Velhner, Maja J. (Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia)) | Stojanović, Dragica M. (Scientific Veterinary Institute Novi Sad, Novi Sad (Serbia))
The purpose of the work was to answer some questions important for a qualitative risk assessment in Serbia. The qualitative risk assessment attempts to understand how the incidence of human campylobacteriosis is influenced by various factors during poultry breeding in our country. In the estimation of risks, foour steps are usually involved. 1. Hazard identification: termophilic Campylobacter spp are the leading cause of zoonotic enteric illness. 2. Hazard characterization: it is assumed to be dose-independent based on some studies on healthy human volunteers. 3.Exposure assessment: The incidence of Campylobacter at poultry farms in Serbia varies from 20 to 80%. Artificial infection of chickens with 6.77 log cfu C. jejuni ATCC 29428 per chicken in 21st day of life leads to 5.26 log cfu/g feces after only 5 days. This number has a trend to decrease in next two weeks when 3.02 log cfu/g feces was found. The prevalence of campylobacter-contaminated chickens from positive flock appears to drop from 100% live birds to 50% of chicken carcasses according to our experimental results. The incidence of human campylobacteriosis in Serbia was 4.88 in 2010. 4. Risk characterization: even there is high exposure of human population to Campylobacter in Serbia, the incidence of human campilobacteriosis from raw meat is low, mainly because there is a lack of evidence and confirmation of human campylobacteriosis.
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