نتایج جستجو برای: h7 serotype
تعداد نتایج: 24436 فیلتر نتایج به سال:
to identify the reservoirs of shiga toxin-producing escherichia coli o157, sensitive detection andisolation methods are necessary. the sensitivity of traditional culture methods can be improved significantlyby the inclusion of an immunoconcentration step, resulting in less false-negative results. in this study,enrichment procedure and immunomagnetic separation (ims) were compared for use in con...
Enterohemorrhagic Escherichia coli (EHEC) are important human pathogens, causing hemorrhagic colitis and hemolytic uraemic syndrome in humans. E. coliO157:H7 is the most common serotype associated with EHEC infections worldwide, although other non-O157 serotypes cause life-threatening infections. Cattle are a main reservoir of EHEC and intervention strategies aimed at limiting EHEC excretion fr...
In 2011, one of the world's largest outbreaks of hemolytic-uremic syndrome (HUS) occurred, caused by a rare Escherichia coli serotype, O104:H4, that shared the virulence profiles of Shiga toxin-producing E. coli (STEC)/enterohemorrhagic E. coli (EHEC) and enteroaggregative E. coli (EAEC). The persistence and fitness factors of the highly virulent EHEC/EAEC O104:H4 strain, grown either in food o...
Rhamnolipid (RL) can inhibit biofilm formation of Escherichia coli O157:H7, but the associated mechanism remains unknown. We here conducted comparative physiological and transcriptomic analyses cultures treated with RL untreated to elucidate a potential by which may in E. O157:H7. Anti-biofilm assays showed that over 70% O157:H7 capacity was inhibited treatment 0.25–1 mg/mL RL. Cellular-level a...
INTRODUCTION Hemolytic uremic syndrome (HUS) is distributed worldwide. In Argentina, more than 450 cases of HUS, mostly sporadic, are reported annually. The main serotype isolated is O157:H7, and among non-O157 STEC, O145:NM is the most frequent strain. We studied the relationship of companion animals living in contact with a child with sporadic HUS, as carriers of Shiga toxin-producing Escheri...
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