INTRODUCTION Escherichia coli causes gastroenteritis in humans and animals. CASE PRESENTATION In this study, both Shiga toxin-producing E. coli (STEC) and atypical enteropathogenic E. coli (EPEC) strains were identified in a stool sample from a healthy child, and they were serotyped as Shiga toxin-producing E. coli (STEC) ONT : H19 and atypical enteropathogenic E. coli (EPEC) O37 : H45. CON...

Schistosomiasis is a chronic enteropathogenic disease caused by blood flukes of the genus Schistosoma. The disease afflicts approximately 240 million individuals globally, causing approximately 70 million disability-adjusted life years lost. Chronic infections with morbidity and mortality occur as a result of granuloma formation in the intestine, liver, or in the case of Schistosoma haematobium...

Enteropathogenic bacteria was isolated from 131 of 447 (29.4%) neotropical Panamanian lizards belonging to 34 species of seven families. Overall, 147 strains of bacteria were isolated comprising 26 Salmonella and 10 Arizona serotypes. Gymnopthalmus speciosus had the highest infection rate, 12 of 13 individuals (92.3%), whereas Gonatodes fuscus exhibited the lowest, 1 of 18 (5.6%). The highest i...

Ribonucleotide reductase (RNR) is an essential enzyme for all living organisms since is the responsible for the last step in the synthesis of the four deoxyribonucleotides (dNTPs) necessary for DNA replication and repair. In this work, we have investigated the expression of the three-RNR classes (Ia, Ib and III) during Escherichia coli biofilm formation. We show the temporal and spatial importa...

Although most enteropathogenic Escherichia coli strains do not produce recognized enterotoxins, we wished to examine whether they produce any factors like heat-stable enterotoxin b or cholera toxin active subunits that might be missed by conventional assay methods. E. coli strains E851 (O142) and E2348 (O127) that had caused diarrhea in volunteers were negative for heat-labile enterotoxin and h...

Rotaviruses and other enteropathogenic agents were detected in 288 (42.1%) of 684 children in day care centers of Instituto Politecnico Nacional in Mexico City. The same agents were also found in 114 (37.7%) of 302 adults directly involved in the care of the children. The study was carried out from July to December 1982 and from July 1983 to February 1984. Rotaviruses were the main enteropathog...

In the present study, we compared two strains of serotypes O88:H25 and O145:H45 with an enteropathogenic Escherichia coli (EPEC) adherence factor-positive (EAF+) strain of the classic enteropathogenic E. coli serotype O111ab:H2 for their association with HeLa cells and with biopsies of human duodenal mucosa. Both strains not belonging to the classic EPEC serotype showed virulence properties sim...

Caspase-1 is an important converging point for danger signals initiating inflammation and defense. Recent work suggests that RhoGTPase activation and/or cytoskeletal disturbance may represent a novel pathway eliciting caspase-1 responses that are subverted by several enteropathogenic bacteria. The enteropathogen Salmonella Typhimurium employs the type III effector protein SopE, an activator (gu...

Escherichia coli strains of nonenteropathogenic serogroups carrying eae but lacking the enteropathogenic E. coli adherence factor plasmid and Shiga toxin DNA probe sequences were isolated from patients (children, adults, and AIDS patients) with and without diarrhea in Brazil. Although diverse in phenotype and genotype, some strains are potentially diarrheagenic.