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. 2015;4(1):17.
doi: 10.1140/epjds/s13688-015-0054-0. Epub 2015 Oct 16.

Enhancing disease surveillance with novel data streams: challenges and opportunities

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Enhancing disease surveillance with novel data streams: challenges and opportunities

Benjamin M Althouse et al. EPJ Data Sci. 2015.

Abstract

Novel data streams (NDS), such as web search data or social media updates, hold promise for enhancing the capabilities of public health surveillance. In this paper, we outline a conceptual framework for integrating NDS into current public health surveillance. Our approach focuses on two key questions: What are the opportunities for using NDS and what are the minimal tests of validity and utility that must be applied when using NDS? Identifying these opportunities will necessitate the involvement of public health authorities and an appreciation of the diversity of objectives and scales across agencies at different levels (local, state, national, international). We present the case that clearly articulating surveillance objectives and systematically evaluating NDS and comparing the performance of NDS to existing surveillance data and alternative NDS data is critical and has not sufficiently been addressed in many applications of NDS currently in the literature.

Keywords: digital surveillance; disease surveillance; novel data streams.

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Figures

Figure 1
Figure 1
The link between public health problems and NDS is modified by user behavior (i.e., propensity to search, what terms are chosen to search, etc.), user demographics, external forces on user behavior (i.e., changing disease severity, changing press coverage, etc.), and finally by public health interventions, which by design aim to modify the public health problem creating feedback loops on the link to NDS.

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