Enteroinvasive Escherichia coli (EIEC) causes dysentery; however, it is less widely reported than other etiological agents in studies of diarrhea worldwide. Between August 2003 and July 2005, stool samples were collected in case-control studies in 22 rural communities in northwestern Ecuador. Infection was assessed by PCR specific for LT and STa genes of enterotoxigenic E. coli (ETEC), the bfp ...

Diarrheagenics Escherichia coli are the major agents involved in diarrheal disease in developing countries. The aim of this study was to evaluate the time of appearance of the first asymptomatic infection by the different categories of diarrheagenic E. coli in 44 children since their birth and during the first 20 months of their lives. In all of the children studied, we detected at least one ca...

Escherichia coli is a diverse bacterial species which is widely distributed in the environment but also exists as a commensal and pathogen of different host species. Human intestinal pathogenic E. coli causes over 160 million cases of diarrhea and an estimated 1 million deaths per year. The majority of deaths are attributable to one pathovar of E. coli, namely, enterotoxigenic E. coli. The path...

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...

7 5 1 O c a 8 1 F b T S , a T S ± e 2 x t S + o N s e Y Table 1: Characteristics of enterotoxigenic Escherichia coli (ETEC) strains associated with infections in pigs of various ages1 Enterotoxigenic Escherichia coli (ETEC) is a major cause of illness and death in neonatal and recently weaned pigs. However, pigs older than approximately 8 weeks appear to be resistant to infection. Strains of ET...

Loss of K99 and STaP genes from enterotoxigenic Escherichia coli 431 during infection occurred by either plasmid curing or plasmid deletion. These mutants expressed the F41 adhesion and colonized neonatal pigs, but only those mutants that retained STaP caused diarrhea with significant weight loss.

Two hundred and ten cases of diarrhoea were investigated for enterotoxigenic Escherichia coli. Sixty eight (32.4%) yielded ETEC strains, out of which fifty seven (27.0%) were LT producers and six (2.9%) were ST producers. Drug sensitivity pattern indicate the effectiveness of gentamicine, streptomycin and chloramphenicol at a higher rate. (JPMA 36: 82, 1986).

Enterotoxigenic Escherichia coli (ETEC) is an important diarrheagenic pathogen. We report here the high-quality whole-genome sequences of 21 ETEC strains isolated from patients in the United States, international diarrheal surveillance studies, and cruise ship outbreaks.