ABSTRACT
A total of 68 Staphylococcus aureus strains isolated from different human clinical samples in the 'North of Palestine were examined to detect staphylococcal enterotoxin [SE] genes A [sea], B [seb], C [sec], D [sed] E [see]. Of the total isolates examined, 41.2% [28/68] were enterotoxigenic S aureus. Twelve strains [42.9%] of enterotoxigenic S aureus harbored sea-gene, ten strains [35.7%] were carried see gene, six strains [21.4%] were positive for sec-gene. None of these enterotoxigenic S aureus isolates harbored more than one of toxin genes. The presence of these toxin genes and other genes not be detected here might play a role in process of pathogenesis of S aureus disease other than food poisoning but this cannot be substantiated by the results of the present study
Subject(s)
Humans , Enterotoxins , GenesABSTRACT
The present study was initiated to assess and evaluate antimicrobial resistance in one hundred eighteen isolates of Shiga toxigenic Escherichia coli STEC o157 obtained from Northern Palestine. Eighty-three percent of isolates were resistant to ampicillin, followed by 59% to norfloxacin, 58% to tetracycline, 55% to gentamicin, 50% to chloramphinicol 48% to amikacin 40% to co-trimoxazole, and 25% to ceftazidime. Multidrug resistance was seen in more than two-third of the isolates[68%] and there was no common resistance pattern among the isolates. Our findings suggest that use of antimicrobials, including tetracycline derivatives, sulfa drugs, aminoglycosides, and penicillins has selected for multiple antimicrobial resistance phenotypes in STEC o157