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Am J Trop Med Hyg. 2014 May;90(5):945-54. doi: 10.4269/ajtmh.13-0497. Epub 2014 Mar 24.

Household water treatment uptake during a public health response to a large typhoid fever outbreak in Harare, Zimbabwe.

Author information

  • 1Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Epidemic Intelligence Service, Scientific Education and Professional Development Program Office, Centers for Disease Control and Prevention, Atlanta, Georgia; Field Epidemiology & Laboratory Training Program, National Institute for Communicable Diseases, Johannesburg, South Africa; School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa; Safe Water Systems, Population Services International-Zimbabwe, Harare, Zimbabwe; Water Sanitation and Hygiene, Welthungerhilfe-Zimbabwe, Harare, Zimbabwe; Collaborating Centre for Operational Research and Evaluation, United Nations Children's Fund-Zimbabwe, Harare, Zimbabwe; City of Harare Health Services Department, Harare, Zimbabwe; Laboratory Services, National Microbiology Reference Laboratory, Harare Zimbabwe; Ministry of Health and Child Welfare, Harare, Zimbabwe; Centers for Disease Control and Prevention-Zimbabwe, Harare, Zimbabwe; Division of Global HIV/AIDS, Centers for Disease Control and Prevention, Atlanta, Georgia; Tufts University, Medford, Massachusetts.

Abstract

Locally manufactured sodium hypochlorite (chlorine) solution has been sold in Zimbabwe since 2010. During October 1, 2011-April 30, 2012, 4,181 suspected and 52 confirmed cases of typhoid fever were identified in Harare. In response to this outbreak, chlorine tablets were distributed. To evaluate household water treatment uptake, we conducted a survey and water quality testing in 458 randomly selected households in two suburbs most affected by the outbreak. Although 75% of households were aware of chlorine solution and 85% received chlorine tablets, only 18% had reportedly treated stored water and had the recommended protective level of free chlorine residuals. Water treatment was more common among households that reported water treatment before the outbreak, and those that received free tablets during the outbreak (P < 0.01), but was not associated with chlorine solution awareness or use before the outbreak (P > 0.05). Outbreak response did not build on pre-existing prevention programs.

PMID:
24664784
[PubMed - indexed for MEDLINE]
PMCID:
PMC4015591
[Available on 2015/5/7]
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