4.7 Article

Predicting Kyasanur forest disease in resource-limited settings using event-based surveillance and transfer learning

Journal

SCIENTIFIC REPORTS
Volume 13, Issue 1, Pages -

Publisher

NATURE PORTFOLIO
DOI: 10.1038/s41598-023-38074-0

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The spread of Kyasanur forest disease (KFD) to new regions and across state boundaries is a concerning issue in recent years. The lack of effective disease surveillance systems hinder control and prevention efforts. This study compared different time-series models and utilized additional information from news media reports and internet search trends to predict KFD cases. The inclusion of this additional data significantly improved prediction performance, and the XGB method produced the best predictions. Transfer Learning techniques also showed promise in predicting KFD cases in new outbreak regions where surveillance information was scarce.
In recent years, the reports of Kyasanur forest disease (KFD) breaking endemic barriers by spreading to new regions and crossing state boundaries is alarming. Effective disease surveillance and reporting systems are lacking for this emerging zoonosis, hence hindering control and prevention efforts. We compared time-series models using weather data with and without Event-Based Surveillance (EBS) information, i.e., news media reports and internet search trends, to predict monthly KFD cases in humans. We fitted Extreme Gradient Boosting (XGB) and Long Short Term Memory models at the national and regional levels. We utilized the rich epidemiological data from endemic regions by applying Transfer Learning (TL) techniques to predict KFD cases in new outbreak regions where disease surveillance information was scarce. Overall, the inclusion of EBS data, in addition to the weather data, substantially increased the prediction performance across all models. The XGB method produced the best predictions at the national and regional levels. The TL techniques outperformed baseline models in predicting KFD in new outbreak regions. Novel sources of data and advanced machine-learning approaches, e.g., EBS and TL, show great potential towards increasing disease prediction capabilities in data-scarce scenarios and/or resource-limited settings, for better-informed decisions in the face of emerging zoonotic threats.

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