Transcription of 2 Defining the current situation - WHO
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2 Defining the current situation - WHO
4 1 2 defining the current situation - epidemiology 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Paul R Hunter, Helen Risebro INTRODUCTION The first step in any economic appraisal or evaluation is to understand the underlying problem being addressed (see Chapter 1). Clearly such analysis of drinking-water interventions will have a strong public health element. This chapter introduces the reader to the role that epidemiology has in determining the burden of disease in a community that may be attributable to lack of access to safe drinking-water and/or adequate sanitation.
1 4 2 Defining the current situation - 3 epidemiology 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Paul R Hunter, Helen Risebro INTRODUCTION The first step in any economic ...
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