Spatial distribution and risk factors associated with Salmonella enterica in pigs

The importance of pork in the transmission of Salmonella spp. to humans has led to the development of control programmes worldwide. For this, knowledge on the epidemiology of the infection in the production system is fundamental to the efficacy of the regulations. Our objective was to determine the...

Full description

Saved in:
Bibliographic Details
Published in:Epidemiology and infection 2017-02, Vol.145 (3), p.568-574
Main Authors: PARADA, J., CARRANZA, A., ALVAREZ, J., PICHEL, M., TAMIOZZO, P., BUSSO, J., AMBROGI, A.
Format: Article
Language:English
Subjects:
Animals
Argentina - epidemiology
Cluster Analysis
Gastrointestinal Organisms
Original Papers
Prevalence
Risk Factors
Salmonella
Salmonella enterica
Salmonella enterica - classification
Salmonella enterica - isolation & purification
Salmonella Infections, Animal - epidemiology
Salmonella Infections, Animal - microbiology
Salmonella typhimurium
Serogroup
Spatial Analysis
Swine
Swine Diseases - epidemiology
Swine Diseases - microbiology
Topography, Medical
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The importance of pork in the transmission of Salmonella spp. to humans has led to the development of control programmes worldwide. For this, knowledge on the epidemiology of the infection in the production system is fundamental to the efficacy of the regulations. Our objective was to determine the prevalence and spatial distribution of Salmonella-infected farms in the central region of Argentina, and to identify the predominant serotypes and epidemiological factors associated with an increased risk of infection. Salmonella was isolated from 22 of 52 sampled farms, for a farm prevalence of 42·3% (95% confidence interval 28·4–56·1). The most frequent serotypes isolated were S. Typhimurium and S. Derby, which have often been considered of public health concern in the region. Limited evidences of global and local clustering in the region under study were found, and the type of feed and presence of diarrhoeic pigs were significantly associated with having Salmonella shedders in the farm. This highlights the need to evaluate microbiological controls at the farm level, and demonstrates the usefulness of the spatial tools to identify areas of greatest risk when processing pork at slaughterhouse, which could contribute to increasing the food safety of pork products.
ISSN:0950-2688
1469-4409
DOI:10.1017/S0950268816002612