Disease burden due to enterotoxigenic Escherichia coli in the first 2 years of life in an urban community in Bangladesh.

• A cohort of 321 children was followed from birth up to 2 years of age to determine the incidence of enterotoxigenic Escherichia coli (ETEC) in Bangladesh. The average number of diarrheal days and incidence rates were 6.6 and 2.3/child/year, respectively. ETEC was the most common pathogen and was isolated in 19.5% cases, with an incidence of 0.5 episode/child/year. The prevalence of rotavirus diarrhea was lower (10%). ETEC expressing the heat-stable enterotoxin (ST) was predominant. Strains isolated from diarrheal cases were positive for colonization factors (CFs) in higher frequency (66%) than from healthy children (33%) (P < 0.001). The heat-labile toxin (LT)-positive strains from healthy children were more often CF negative (92%) than those isolated from children with diarrhea (73%) (P < 0.001). In children with symptomatic or asymptomatic infections by CFA/I, CS1 plus CS3, CS2 plus CS3, or CS5 plus CS6 strains, a repeat episode of diarrhea or infection by the homologous CF type was uncommon. Repeat symptomatic infections were noted mostly for LT- and ST-expressing ETEC. ETEC diarrhea was more prevalent in children in the A and AB groups than in those in the O blood group (P = 0.032 to 0.023). Children with ETEC diarrhea were underweight and growth stunted at the 2-year follow-up period, showing the importance of strategies to prevent and decrease ETEC diarrheal morbidity in children.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Microbiology in the medical area (hsv//eng)

Nyckelord

ABO Blood-Group System

Bacterial Toxins

biosynthesis

Bangladesh

epidemiology

Breast Feeding

Diarrhea

Infantile

epidemiology

microbiology

Enterotoxins

biosynthesis

Enzyme-Linked Immunosorbent Assay

Escherichia coli

classification

isolation & purification

Escherichia coli Infections

blood

epidemiology

microbiology

pathology

Escherichia coli Proteins

biosynthesis

Feces

microbiology

Female

Humans

Incidence

Infant

Infant

Newborn

Male

Pregnancy

Rotavirus

isolation & purification

Rotavirus Infections

epidemiology

Seasons

Urban Population

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)