Abstract：
:Food poisoning caused by Staphylococcus aureus (S. aureus) toxins is considered one of the foremost public health threat that usually occurs through the ingestion of raw milk contaminated with staphylococcal enterotoxins. The current study spotlights on the prevalence, antibiogram and genetic diversity of S. aureus enterotoxin genes. One hundred and fifty of raw milk (90) and ice cream (60) samples were randomly collected from local markets from Sadat city, Egypt. S. aureus was recovered from 44% of raw milk and 20% of ice cream samples. The identification for the obtained S. aureus isolates was confirmed through targeting the nuc gene. Antibiogram pattern of 32 S. aureus isolates showed high resistance to Cefoxitin, Sulpha/Trimethoprim, Tetracycline, Norfloxacin, Penicillin and Cephradine. However, high susceptibility to Gentamycin and Vancomycin were observed. Multiplex PCR was a competent practise for the recognition of Staphylococcus enterotoxin (SE) genes (SEA, SEB and SED). The phylogenetic analysis of the SED gene of enterotoxigenic S. aureus strains showed identical similarity with 100% to each other and high similarity with other international isolates in GenBank from different localities and sources. The frequency of enterotoxigenic S. aureus strains in milk products could have serious hazardous effects on humans. These results suggested possible strains transmission between different geographical areas through the food and milk product trades.
journal_name
Saudi J Biol Scijournal_title
Saudi journal of biological sciencesauthors
Abdeen EE,Mousa WS,Abdel Salam SY,Al-Maary KS,Mubarak AS,Moussa IM,Hemeg HA,Almuzaini AM,Alajaji AI,Alsubki RA,Elbehiry Adoi
10.1016/j.sjbs.2020.06.028subject
Has Abstractpub_date
2020-08-01 00:00:00pages
1968-1974issue
8eissn
1319-562Xissn
2213-7106pii
S1319-562X(20)30267-9journal_volume
27pub_type
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