Food safety and risk最新文献

{"title":"Seasonal variation of <i>Salmonella enterica</i> prevalence in milk and cottage cheese along the dairy value chain in three regions of Ethiopia.","authors":"Henok Nahusenay Admasu, Abdi Bedassa, Tesfaye Sisay Tessema, Jasna Kovac, Jessie L Vipham, Ashagrie Zewdu Woldegiorgis","doi":"10.1186/s40550-024-00108-4","DOIUrl":"10.1186/s40550-024-00108-4","url":null,"abstract":"<p><p>Seasonal fluctuations influence foodborne illness transmission and affect patterns of microbial contamination of food. Previous investigations on the seasonality of <i>Salmonella enterica</i> prevalence in dairy products in Ethiopia have been minimal. However, such data are needed to inform strategic development of effective interventions to improve food safety, as seasonal differences may affect intervention strategies. This study was conducted to identify differences in the prevalence of <i>Salmonella</i> in milk and cheese samples between wet and dry seasons. A longitudinal study design was utilized with a random sampling occurring during both dry and wet seasons. A total of 448 milk and cottage cheese samples were collected from Oromia, Sidama, and Amhara regions. Samples were tested for <i>Salmonella</i> using the ISO 6579-1: 2008 method, followed by PCR confirmation. A chi-square test was conducted to assess the significance of differences in the prevalence of <i>Salmonella</i> in the samples between the two seasons. Results from this study showed a higher prevalence of <i>Salmonella</i> in all sample types during the dry season (<i>P</i> < 0.05). Moreover, when comparing raw milk, pasteurized milk, and cottage cheese samples, a significant difference was observed in <i>Salmonella</i> prevalence from raw milk samples (27.08%) collected in the Oromia region. Additionally, data showed a significantly higher prevalence of <i>Salmonella</i> in samples collected from raw milk producers (29.17%) during the wet season (<i>P</i> < 0.05). This study indicates that in order to enhance the safety of dairy products in Ethiopia, comprehensive, long-term awareness building on hygienic milk production and handling that consider seasonal influence is warranted.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1186/s40550-024-00108-4.</p>","PeriodicalId":519905,"journal":{"name":"Food safety and risk","volume":"11 1","pages":"2"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11087248/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140912689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}