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Over 390 million people worldwide are infected with dengue fever each year. In the absence of an effective vaccine for general use, national control programs must rely on hospital readiness and targeted vector control to prepare for epidemics, so accurate forecasting remains an important goal. Many dengue forecasting approaches have used environmental data linked to mosquito ecology to predict when epidemics will occur, but these have had mixed results. Conversely, human mobility, an important driver in the spatial spread of infection, is often ignored. Here we compare time-series forecasts of dengue fever in Thailand, integrating epidemiological data with mobility models generated from mobile phone data. We show that geographically-distant provinces strongly connected by human travel have more highly correlated dengue incidence than weakly connected provinces of the same distance, and that incorporating mobility data improves traditional time-series forecasting approaches. Notably, no single model or class of model always outperformed others. We propose an adaptive, mosaic forecasting approach for early warning systems.

Original publication

DOI

10.1038/s41598-020-79438-0

Type

Journal article

Journal

Scientific reports

Publication Date

13/01/2021

Volume

11

Addresses

Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA.

Keywords

Animals, Humans, Dengue, Incidence, Models, Statistical, Disease Outbreaks, Population Dynamics, Forecasting, Travel, Thailand, Epidemics, Mosquito Vectors