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Vet World. 2016 Nov;9(11):1184-1189. doi: 10.14202/vetworld.2016.1184-1189. Epub 2016 Nov 03.

Enterohemorrhagic .

Veterinary world

Aboubaker M Garbaj, Enas M Awad, Salah M Azwai, Said K Abolghait, Hesham T Naas, Ashraf A Moawad, Fatim T Gammoudi, Ilaria Barbieri, Ibrahim M Eldaghayes

Affiliations

  1. Department of Food Hygiene and Control, Faculty of Veterinary Medicine, University of Tripoli, P.O. Box 13662, Tripoli, Libya.
  2. Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Tripoli, P.O. Box 13662, Tripoli, Libya.
  3. Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Suez Canal University, 41522 Ismailia, Egypt.
  4. Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt.
  5. Department of Genetics, The Lombardy and Emilia Romagna Experimental Zootechnic Institute (IZSLER), Via Bianchi 9, 25124 Brescia, Italy.

PMID: 27956766 PMCID: PMC5146295 DOI: 10.14202/vetworld.2016.1184-1189

Abstract

AIM: The aim of this work was to isolate and molecularly identify enterohemorrhagic

MATERIALS AND METHODS: A total of 108 samples of raw milk (cow, she-camel, and goat) and locally made dairy products (fermented cow's milk, Maasora, Ricotta and ice cream) were collected from some regions (Janzour, Tripoli, Kremiya, Tajoura and Tobruk) in Libya. Samples were subjected to microbiological analysis for isolation of

RESULTS: Out of 108 samples, only 27 isolates were found to be EHEC O157 based on their cultural characteristics (Tellurite-Cefixime-Sorbitol MacConkey) that include 3 isolates from cow's milk (11%), 3 isolates from she-camel's milk (11%), two isolates from goat's milk (7.4%) and 7 isolates from fermented raw milk samples (26%), isolates from fresh locally made soft cheeses (Maasora and Ricotta) were 9 (33%) and 3 (11%), respectively, while none of the ice cream samples revealed any growth. However, out of these 27 isolates, only 11 were confirmed to be

CONCLUSION: These results can be used for further studies on EHEC O157 as an emerging foodborne pathogen and its role in human infection in Libya.

Keywords: 16S rDNA; dairy products; enterohemorrhagic Escherichia coli O157; milk

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