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Seasonal variation of Salmonella enterica prevalence in milk and cottage cheese along the dairy value chain in three regions of Ethiopia.
Admasu, Henok Nahusenay; Bedassa, Abdi; Tessema, Tesfaye Sisay; Kovac, Jasna; Vipham, Jessie L; Woldegiorgis, Ashagrie Zewdu.
Afiliação
  • Admasu HN; Head quarter Food science and Nutrition research directorate, Ethiopian Institute of Agricultural Research, PO Box 2003, Addis Ababa, Ethiopia.
  • Bedassa A; Ethiopian Institute of Agricultural Research, National Agricultural Biotechnology Research Center, PO Box 249, Holeta, Ethiopia.
  • Tessema TS; Institute of Biotechnology, Addis Ababa University, New Graduate Building, P.O. Box 1176, Addis Ababa, Ethiopia.
  • Kovac J; Department of Food Science, The Pennsylvania State University, 437 Erickson Food Science Building, University Park, Pennsylvania, PA 16802 USA.
  • Vipham JL; Department of Animal Sciences and Industry, Kansas State University, 247 Weber Hall, Manhattan, KS 66506 USA.
  • Woldegiorgis AZ; Center for Food Science and Nutrition, College of Natural Sciences, Addis Ababa University, New Graduate Building, P.O. Box 1176, Addis Ababa, Ethiopia.
Food Saf Risk ; 11(1): 2, 2024.
Article em En | MEDLINE | ID: mdl-38737868
ABSTRACT
Seasonal fluctuations influence foodborne illness transmission and affect patterns of microbial contamination of food. Previous investigations on the seasonality of Salmonella enterica 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 Salmonella 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 Salmonella 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 Salmonella in the samples between the two seasons. Results from this study showed a higher prevalence of Salmonella in all sample types during the dry season (P < 0.05). Moreover, when comparing raw milk, pasteurized milk, and cottage cheese samples, a significant difference was observed in Salmonella prevalence from raw milk samples (27.08%) collected in the Oromia region. Additionally, data showed a significantly higher prevalence of Salmonella in samples collected from raw milk producers (29.17%) during the wet season (P < 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. Supplementary Information The online version contains supplementary material available at 10.1186/s40550-024-00108-4.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article