A total of 373 isolates of Escherichia coli were obtained from one or more calves with diarrhea in 155 herds during the 1974 calving season in Montana. Sixty-seven (18 percent) of the isolates representing 59 of the 155 herds were found to be enterotoxigenic as indicated by their ability to cause distention of the calf ligated intestinal segment. The 67 isolates of enterotoxigenic E. coli (ETEC...

Currently there is only limited understanding of the reservoirs for Clostridium perfringens type A food poisoning. A recent survey (Y.-T. Lin and R. Labbe, Appl. Environ. Microbiol. 69:1642-1646, 2003) of non-outbreak American retail foods did not identify the presence of a single C. perfringens isolate carrying the enterotoxin gene (cpe) necessary for causing food poisoning. The present study ...

Objectives: Staphylococcus aureus is an important pathogen associated with diseases in a variety of hosts including humans. It produces several toxins and virulence factors that contribute to its pathogenic potential such as staphylococcal enterotoxins (SEs). This study was conducted to determine enterotoxigenicity of S. aureus associated with chronic urogenital tract infection by detecting ent...

Background Micro-RNAs (miRNAs) are a class of small non-coding RNA molecules that function though post transcriptional regulation of gene expression by a process termed RNA interference (RNAi). RNAi–mediated targeting of viral RNAs is recognized as an antiviral defense mechanism. The epigenetic effect of miRNAs can either be direct, by interfering with virus genome, or indirect, through downreg...

Heat-stable enterotoxigenic Escherichia coli was identified by nucleotide hybridization with RNA transcripts of the gene encoding heat-stable A-2 enterotoxin. Radiolabeled enterotoxin gene RNA transcripts are easier to prepare and avoid the preparation of cloned DNA probes that can be nonspecific if they contain cloning vector DNA.

Escherichia coli strain SEC470 is a diarrhea-causing strain, isolated from a piglet experiencing serious diarrhea in Jingxi Province, China. Here, we present the draft genome of this strain, which provides the genetic basis for exploring the mechanism of enterotoxigenic E. coli infections.

The prevention of traveler's diarrhea by use of pharmacologic agents has been of great interest since the early 1960s. It was not until the discovery of enterotoxigenic Escherichia coli as the dominant causative organism of travelers' diarrhea, however, that rational antimicrobial therapy could be studied. Selected antimicrobials have proven to be highly efficacious, but, by consensus, are not ...

Results: Diarrhoeagenic E. coli was found in 148 (13.2 %) of examined specimens. Among these 77 (52 %) were enteropathogenic (EPEC), 69 (46.6 %) were enterotoxigenic (ETEC) and 2 (1.4 %) were enteroinvasive Escherichia coli (EIEC). EPEC serotypes 0119K69, 0114K90 and 0111K58 were the more frequent among twelve other serotypes. Diarrhoeagenic Escherichia coli showed high rates of resistance to a...

Murica is an rv5-like myophage that infects enterotoxigenic Escherichia coli. Pathogenic E. coli strains are responsible for many intestinal diseases, and phages that infect these bacteria may prove useful in preventing severe health issues. The following is a report of the complete genome sequence of Murica and its important features.