Risk factors for sporadic domestically acquired Salmonella serovar Enteritidis infections: A case-control study in Ontario, Canada, 2011

摘要

In Ontario, Canada, the number of Salmonella Enteritidis (SE) cases increased over the years 2005-2010. A population-based case-control study was undertaken from January to August 2011 for the purpose of identifying risk factors for acquiring illness due to SE within Ontario. A total of 199 cases and 241 controls were enrolled. After adjustment for confounders, consuming any poultry meat adjusted odds ratio (aOR) 2·24, 95 confidence interval (CI) 1·31-3·83, processed chicken (aOR 3·32, 95 CI 1·26-8·76) and not washing hands following handling of raw eggs (OR 2·82, 95 CI 1·48-5·37) were significantly associated with SE infection. The population attributable fraction was 46 for any poultry meat consumption and 10 for processed chicken. Poultry meat continues to be identified as a risk factor for SE illness. Control of SE at source, as well as proper food handling practices, are required to reduce the number of SE cases.