نتایج جستجو برای: toxigenic risk
تعداد نتایج: 946481 فیلتر نتایج به سال:
Aim This study evaluated the frequency of C. difficile and CDAD in the ICU of Shahid Bahonhar Hospital, Kerman, Iran. Background Clostridium difficile (C. difficile) is the most important antibiotic associated diarrhea agent in intensive care unit (ICU) patients. Based on its toxin producing ability, C .difficile is divided to toxigenic and non-toxigenic strains. Methods A total of 233 diar...
BACKGROUND This study is to investigate the significance and risk factors of fecal toxigenic (tCdC) or non-toxigenic Clostridium difficile colonization (ntCdC) among hospitalized patients. METHODS Adults admitted to medical wards in a district hospital between January 2011 and June 2012 were enrolled, and those with a history of colectomy, C. difficile fecal colonization or infection or recei...
BACKGROUND & OBJECTIVES Clostridium difficile is the primary cause of hospital-acquired colitis in patients receiving antibiotics. The pathogenicity of the organism is mainly due to the production of toxins. This study was conducted to investigate the presence of toxigenic C. difficile in the faecal samples of hospitalized patients suspected to have C. difficile infection (CDI) and corroboratin...
Pathogenic strains of Vibrio cholerae are responsible for endemic and pandemic outbreaks of the disease cholera. The complete toxigenic mechanisms underlying virulence in Vibrio strains are poorly understood. The hypothesis of this work was that virulent versus non-virulent strains of V. cholerae harbor distinctive genomic elements that encode virulence. The purpose of this study was to elucida...
Microbial toxins are important factors that contribute to human diseases and food losses. Predicting the production of these before they occur is a significant challenge. In this study, we innovatively developed strategy called targeted acquisition toxin-related immunogen (TATRI) identify early diagnostic biomarkers for microbial toxins. Taking Aspergillus flavus as an example, employed immunoa...
This study aimed to compare the occurrence and level of Bacillus cereus sensu stricto (B. cereus) in chili, previously isolated white pepper from traditional supermarkets around Bogor, determine phylogenetic relationship between obtained isolates based on their 16S rDNA gene, potential toxicity ces nheA genes using Polymerase Chain Reaction. The highest presumptive B. samples was 5.95×105 2.6×1...
background and objectives: cholerae disease caused by toxigenic v. cholerae, is a major public health problem in developing countries including iran. epidemiological surveillance and comparative molecular analysis of isolates have demonstrated clonal diversity among epidemic strains and a continual emergence of new clones of toxigenic v.cholerae. material and methods: a total of 20 v.cholerae s...
In toxigenic Vibrio cholerae, the cholera enterotoxin (CT) is encoded by CTXPhi, a lysogenic bacteriophage. The propagation of this filamentous phage can result in the origination of new toxigenic strains. To understand the nature of possible environmental factors associated with the propagation of CTXPhi, we examined the effects of temperature, pH, salinity, and exposure to direct sunlight on ...
BACKGROUND The reemergence of epidemic diphtheria in Belarus in 1990s has provided us with important information on the biology of the disease and the diversity of the causative agent Corynebacterium diphtheriae. Molecular investigations were conducted with the aim to analyze the genetic variability of C diphtheriae during the post-epidemic period. METHODS The biotype and toxigenicity status ...
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