Biotyping of Enterotoxigenic Staphylococcus aureus by Enterotoxin Gene Cluster ( egc ) Polymorphism and spa Typing Analyses
نویسندگان
چکیده
منابع مشابه
Immune cell activation by enterotoxin gene cluster (egc)-encoded and non-egc superantigens from Staphylococcus aureus.
The species Staphylococcus aureus harbors 19 superantigen gene loci, six of which are located in the enterotoxin gene cluster (egc). Although these egc superantigens are far more prevalent in clinical S. aureus isolates than non-egc superantigens, they are not a prominent cause of toxic shock. Moreover, neutralizing Abs against egc superantigens are very rare, even among carriers of egc-positiv...
متن کاملspa typing and enterotoxin gene profile of Staphylococcus aureus isolated from bovine raw milk in Korea
Staphylococcus aureus is a major etiological pathogen of bovine mastitis, which triggers significant economic losses in dairy herds worldwide. In this study, S. aureus strains isolated from the milk of cows suffering from mastitis in Korea were investigated by spa typing and staphylococcal enterotoxin (SE) gene profiling. Forty-four S. aureus strains were isolated from 26 farms in five province...
متن کاملClonal distribution and differential occurrence of the enterotoxin gene cluster, egc, in carriage- versus bacteremia-associated isolates of Staphylococcus aureus.
The Staphylococcus aureus enterotoxin gene cluster, egc, was detected in isolates from healthy individuals and in those from patients with bacteremia. The egc genes cooccur and are slightly enriched in strains from healthy carriers (present in 63.7% of carriage-associated isolates versus 52.9% of invasive isolates; P = 0.03). Multilocus sequence typing revealed that successful staphylococcal cl...
متن کاملDetection of Classic Enterotoxin Genes and Coagulase Gene Typing of Staphylococcus Aureus Isolated from Raw Cow Milk in Isfahan
Background and Aims: Staphylococcus aureus (S. aureus) is considered as one of the most dangerous pathogenic bacteria due to the production of extracellular toxins. The objective of this study was to determine the prevalence of S. aureus and to characterize the recovered strains for their enterotoxin-producing genes in raw cow milk. Materials and Methods: During 9 months duration of the s...
متن کاملEnterotoxin gene profiles among Staphylococcus aureus isolated from raw milk
Milk is considered a nutritious food because it contains several important nutrients including proteins and vitamins. Conversely, it can be a vehicle for several pathogenic bacteria such as Staphylococcus aureus. This study aimed to analyze the frequency of genes encoding the nine Staphylococcal enterotoxins (SEs) and enterotoxin gene profiles in S. aureus isolates derived from raw bovine milk....
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2006
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.00773-06