title: Prevalence of enterotoxigenic Staphylococcus aureus in organic milk and cheese in Tabriz, Iran.
abstract: OBJECTIVE
  Staphylococcal food poisoning is a gastrointestinal disease, which is caused by consumption of contaminated food with enterotoxins produced by Staphylococcus aureus (SEs). Milk and its products are known sources of food borne diseases. This study was carried out to evaluate the prevalence of enterotoxigenic S. aureus strains in organic milk and cheese in Tabriz - Iran.
  
  
  METHODS
  A total of 200 samples (100 milk samples and 100 cheese samples) were collected from farms and milk collection points in Tabriz - Iran. The samples were cultured and identified by standard bacteriological methods, then PCR was performed to detect sea gene.
  
  
  CONCLUSIONS
  Staphylococcus aureus was found in 27% of all samples (milk and cheese). Results of PCR showed that 12.96% of S. aureus isolates possessed sea gene. It suggested the potential public health threat of S. aureus resulting from contamination of dairy products. So, efforts are required to improve safety standards for preventing staphylococcal food poisoning.
authors.affiliation: Department of Microbiology, Faculty of Basic and Medical Science, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
authors.forename: Yalda
authors.initials: Y
authors.lastname: Rahbar Saadat
authors.affiliation: Applied Microbiology Research Center, Baqiyatallah University Medical of Sciences, Tehran, Iran.
authors.forename: Abbas Ali
authors.initials: AA
authors.lastname: Imani Fooladi
authors.affiliation: Department of Microbiology, Faculty of Basic and Medical Science, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Shapouri
authors.affiliation: Department of Microbiology, Faculty of Basic and Medical Science, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
authors.forename: Mir Mohsen
authors.initials: MM
authors.lastname: Hosseini
authors.affiliation: Department of Microbiology, Faculty of Basic and Medical Science, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Deilami Khiabani
keywords: Cheese; Enterotoxin; Organic Milk; Staphylococcus aureus
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