Prevalence of Salmonella enterica and Salmonella enterica serotype Typhimurium in swine at slaughter

摘要

Salmonella enterica is recognized as an important foodborne pathogen with multiple potential sources, including pork. However, although S. enterica constitutes a very heterogeneous group of bacteria, including more than 2,400 serotypes, only a limitednumber of serotypes are responsible for most outbreaks. According to the U.S. Centers for Disease Control and Prevention, almost 80% of the S. enterica isolated from humans are represented by only 20 serotypes, with S. enterica serotype Typhimurium being the most commonly reported (19.7%). Curiously, despite the importance of 5. enterica serotype Typhimurium as the most common cause of foodborne infections, a limited number of se-rotype-specific epidemiological studies are available, particularly in swine. Therefore, the objective of this cross-sectional survey was to analyze data available from multiple studies conducted by our research team estimating the prevalence of 5. enterica overall, and specifically of 5. enterica serotype Typhimurium in swine at slaughter.