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Acute- and convalescent-phase sera from 132 students attending a university in rural Mexico were assayed for antibody against the heat-labile enterotoxin (LT) of Escherichia coli by neutralization of LT activity in the Y-1 adrenal cell assay and by passive immune hemolysis of LT-sensitized sheep
In the majority of diarrheal diseases no causative bacterial organism can be identified. Enteropathogenic E.-Coli-Strains were incriminated as causative agents in gastroenteritis on a epidemiologic basis, no pathogenetic mechanisms could be attributed. Cholera research initiated a new understanding
Recently, Beutin et al have studied hemolysin production in a large number of serologically diverse verotoxin (VT) producing Escherichia coli (VTEC) strains and found a close association between hemolysin production and VT production. This study was to examine whether hemolysin production on sheep
OBJECTIVE
To determine prevalence of various pheno- and genotypes of Serpulina sp in young pigs in relation to diarrhea and feed medication in Swedish pig-rearing herds.
METHODS
Isolation of spirochetes. Phenotypical and genotypical classification.
METHODS
Young pigs (n = 358) in 19 pigrearing
The hemolytic-uremic syndrome (HUS) is a frequent cause of acute renal failure in childhood. It comprises acute acquired hemolysis, thrombocytopenia, and renal dysfunction. Very many disease processes can lead to this constellation, the most frequent one in childhood being an infection by bacteria
BACKGROUND
To study the prevalence of virulence factors (adhesion, invasion, cytotoxicity and hemolytic activity) and to establish the presence of pathovars (virulence phenotype) in C. jejuni strains isolated in pediatric patients with inflammatory and secretory diarrhea and asymptomatic
OBJECTIVE
To assess the prevalence of Clostridium perfringens enterotoxin in feces of dogs with and without diarrhea, and to compare the use of microbial cultures from fecal specimens and evaluation of stained fecal smears for endospores with the presence of enterotoxin as tools for diagnosing C
Acute hemolysis as a reaction to rifampicin is extremely rare; case reports number less than 15. We recently evaluated a 65-year-old Cambodian refugee who self-regulated the use of rifampicin and isoniazid for pulmonary tuberculosis. Fifteen minutes after a single discontinuous oral dose, he
Acute ingestion of copper sulfate has been reported to cause gastrointestinal injury, hemolysis, methemoglobinemia, hepatorenal failure, shock; or even death. The toxicity of organocopper compounds, however, remains largely unknown. A 40-y-old man attempted suicide by ingesting some 50 ml of
BACKGROUND
Plasma and serum zinc concentrations are the most widely used markers of zinc status in individual persons and populations.
OBJECTIVE
The objective was to identify factors that influence plasma zinc concentrations during acute childhood diarrhea.
METHODS
This was a cross-sectional study
To diagnose the colibacillosis, the detection of O-serogroups and virulence genes has been recommended worldwide. The prevalence of the viruence factors can fluctuate over time. The objectives of this the present study were to determine the prevalence of O-serogroups, virulence genes, and F18
The OK antigens and the fimbriae F4 of E. coli with haemolysis isolated from 113 cases of oedema disease and/or diarrhoea were identified serologically. The genes for F18 and for enterotoxins LT, STIa and STII as well as Shigatoxin Stx2e were determined by PCR. Fimbrial variants F18ab and F18ac were