Diarrheal Disease in Cambodian Children at a Camp in Thailand

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Abstract
The etiology of acute diarrhea (≤3 days duration) and persistent diarrhea (≥14 days duration) was determined in Cambodian children under age 5 years in a refugee camp on the Thai-Cambodian border between May and October 1989; potential risk factors associated with persistent diarrhea were examined in an age-matched case-control study. Specimens collected from children and environmental sources were examined by standard microbiologic methods; Escherichia coli isolates were examined for hybridization with specific DNA probes and in tissue culture adherence assays. The same bacterial, viral, or parasitic agents were identified in 79 children with persistent diarrhea and in 408 children with acute diarrhea. Only one of nine children with persistent diarrhea excreted the same organism, Cryptosporidium, for that extended period. The most important risk factors identified for developing persistent diarrhea were living with other young children (odds ratio (OR) = 2.0, 95% confidence interval (Cl) 1.2–3.4) and being undernourished (OR = 2.6, 95% Cl 1.2–5.7). Persistent diarrhea in children in this camp was associated with several different agents rather than persistent infections with a single organism.

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