Community-based monitoring of diarrhea in urban Brazilian children: incidence and associated pathogens


Barreto, ML; Milroy, CA; Strina, A; Prado, MS; Leite, JP; Ramos, EAG; Ribeiro, H; Alcantara-Neves, NM; Teixeira, MD; Rodrigues, LC; Ruf, H; Guerreiro, H; Trabulsii, LR; (2006) Community-based monitoring of diarrhea in urban Brazilian children: incidence and associated pathogens. Transactions of the Royal Society of Tropical Medicine and Hygiene, 100 (3). pp. 234-242. ISSN 0035-9203 DOI: 10.1016/j.trstmh.2005.03.010

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Abstract

Community-based monitoring was conducted in order to investigate the occurrence of diarrhea in 'sentinel areas' of Salvador, Brazil, and to establish a preliminary profile of the most common pathogens present in children's diarrhea by screening stool samples. This report describes the results obtained from twice weekly home visits to identify and follow diarrhea episodes and testing of carer-requested stool sample collection over a 6-month period. Participants were selected from a large longitudinal study in 21 areas representing the city's poorer socioeconomic and sanitary conditions. Fecal samples were examined for the presence of pathogenic bacteria, viruses and protozoa. The mean incidence of diarrhea was 4.97 episodes per child-year, and longitudinal prevalence was 13.6 days per child-year (3.7%). Pathogens were found in 44% of the fecal samples examined. Bacteria were the most frequently encountered pathogens (isolated in 22% of samples), followed by protozoa (19.5%) and viruses (16%). Viral and bacterial pathogens were associated with episodes of severe diarrhea, while viral and protozoan pathogens were associated with longer episodes. The study demonstrated the importance of a public health monitoring system based on 'sentinel areas'. (c) 2005 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Infectious Disease Epidemiology
Research Centre: Centre for Maternal, Reproductive and Child Health (MARCH)
Centre for Global Non-Communicable Diseases (NCDs)
Vaccine Centre
PubMed ID: 16303156
Web of Science ID: 235264800007
URI: http://researchonline.lshtm.ac.uk/id/eprint/12083

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