Interaction among ethnicity, socioeconomic status, and Helicobacter pylori seroprevalence in Israeli children and adolescents.

Objectives: The aim of the study was to examine the prevalence of Helicobacter pylori infection among Israeli children from different backgrounds and to assess potential interactions between ethnicity, socioeconomic status (SES), and H pylori seroprevalence.

Patients And Methods: The present sero-epidemiologic study was conducted among 0- to 20-year-old children seeking medical attention, not specifically gastrointestinal symptoms, using sera collected between 2000 and 2001 from 575 Israeli Arab children, 584 Jewish children from the general population, and sera that were obtained between 1997 and 2007 from 464 children of an ultraorthodox Jewish community. An enzyme-linked immunosorbent assay was used to measure H pylori serum immunoglobulin G antibodies and seropositivity to H pylori CagA strains.

Phenotypic characteristics of enterotoxigenic Escherichia coli associated with acute diarrhea among Israeli young adults.

Enterotoxigenic Escherichia coli (ETEC) is a major cause of diarrhea among infants and children in developing countries, as well as among travelers to these areas. The major virulence factors of ETEC are the colonization factor antigens (CFAs) and a heat-labile enterotoxin (LT) and/or a heat-stable enterotoxin (ST). Among Israeli recruits serving under military field conditions, 107 of all examined isolates expressed LT or ST, and CFAs could be characterized in 68% of the isolates, in which CFAs of the CFA/II group and CS6 were the most prevalent.

Evaluation of a urine-based enzyme-linked immunosorbent assay test for the detection of Helicobacter pylori infection among 3- to 5-year-old Israeli Arab healthy children.

We conducted a community-based study among 159 healthy Israeli Arab children aged 3 to 5 years old to examine the validity of the HpELISA kit (URINELISA, Otuska Phamaceuticals Co, Ltd, Tokyo, Japan) for detection Helicobacter pylori IgG antibodies in urine. The polyclonal H. pylori stool antigen test (Premier HpSA) served as the gold standard.