نتایج جستجو برای: enterotoxin genes
تعداد نتایج: 431121 فیلتر نتایج به سال:
Background: Staphylococcus aureus is a major foodborne pathogen throughout the world. Enterotoxins and toxic shock syndrome toxin-1 are important virulence factors and as pyrogenic toxin superantigens have profound effects on the ir host. Thus circulation of TSST1 producing S.aureus among people and food chain is a worrying issue. The present paper was conducted to study Prevalence of tst, entC...
A large-scale outbreak of food poisoning caused by consumption of skimmed milk powder contaminated with staphylococcal enterotoxin A (SEA) occurred in Japan. No viable Staphylococcus aureus was detected in the skimmed milk powder, however, sea and nuc genes of S. aureus were detected in it by PCR. The number of S. aureus in skimmed milk powder was estimated by quantitative real-time PCR.
The aim of this study was to determine the presence methicillin resistant staphylococci (MRS) in retail raw chicken meat samples sold Hatay. antimicrobial susceptibility isolates tested for 13 different antimicrobials by disc diffusion method and investigated resistance genes encoding (mecA), tetracycline (tetM, tetK), penicillin (blaZ), macrolide (ermA, ermC), lincosamide (lnuA) aminoglycoside...
We report here the complete nucleotide sequence of pEntH10407 (65 147 bp), an enterotoxigenic Escherichia coli enterotoxin plasmid (Ent plasmid), which is self-transmissible at low frequency. Within the plasmid, we identified 100 open reading frames (ORFs) which could encode polypeptides. These ORFs included regions encoding heat-labile (LT) and heat-stable (STIa) enterotoxins, regions encoding...
Aim: Present study was undertaken to find out the frequency of few virulent genes and prevalence of related strains of Escherichia coli isolated from chicken meat obtained from chicken retail shops by Polymerase Chain Reaction (PCR). Materials and Methods: 66 samples of freshly slaughtered chicken meat were collected from 22 identified retail shops located at Mumbai city, randomly. Processed me...
The species Bacillus cereus, known for its ability to cause food borne disease, consists of a large variety of strains. An important property for discrimination of strains is their growth temperature range. Fifty-two strains of Bacillus cereus isolated from different sources of food (milk, dairy product, spices and rice salad) for two years were determined to be either mesophilic or psychrotrop...
OBJECTIVE The objective of the current study was to detect Staphylococcus aureus colonization and the presence of superantigen in atopic dermatitis (AD) in Egyptian patients, and to determine its effect on disease severity and serum interleukin (IL)-4 levels. METHODS Swabs were taken from the skin of 30 patients with AD. S. aureus isolates were screened for the presence of genes of exotoxins ...
The objective of this study was to determine the occurrence of the enterotoxigenic S. aureus within 205 raw milk and traditional cheese samples examined. The S. aureus strains isolated from raw milk and traditional cheese samples examined were 50 (58.8%, 50/85) and 55 (45.8%, 55/120) respectively however both camel milk and cream cheese samples had not any S. aureus detected. The isolated S. au...
BACKGROUND Widespread in the environment, Staphylococcus spp. infect animals and humans as normal flora or pathogens. By extending our recent report of multi-drug resistant (MDR) S. aureus in dairy goats, this study investigated the staphylococcal infection and characterized the MDR-S. aureus and methicillin-resistant S. aureus (MRSA) isolates collected from goats in 2008 to elucidate the appea...
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