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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >A Mixed Outbreak of Epidemic Typhus Fever and Trench Fever in a Youth Rehabilitation Center: Risk Factors for Illness from a Case-Control Study, Rwanda, 2012
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A Mixed Outbreak of Epidemic Typhus Fever and Trench Fever in a Youth Rehabilitation Center: Risk Factors for Illness from a Case-Control Study, Rwanda, 2012

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In August 2012, laboratory tests confirmed a mixed outbreak of epidemic typhus fever and trench fever in a male youth rehabilitation center in western Rwanda. Seventy-six suspected cases and 118 controls were enrolled into an unmatched case-control study to identify risk factors for symptomatic illness during the outbreak. A suspected case was fever or history of fever, from April 2012, in a resident of the rehabilitation center. In total, 199 suspected cases from a population of 1,910 male youth (attack rate = 10.4) with seven deaths (case fatality rate = 3.5) were reported. After multivariate analysis, history of seeing lice in clothing (adjusted odds ratio aOR = 2.6, 95 confidence interval CI = 1.1-5.8), delayed (>= 2 days) washing of clothing (aOR = 4.0, 95 CI = 1.6-9.6), and delayed (>= 1 month) washing of beddings (aOR = 4.6, 95 CI = 2.0-11) were associated with illness, whereas having stayed in the rehabilitation camp for 6 months was protective (aOR = 0.20, 95 CI = 0.10-0.40). Stronger surveillance and improvements in hygiene could prevent future outbreaks.

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