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CalCORVID: a dynamic RShiny dashboard approach to visualize spatiotemporal clusters for public health surveillance

Phoebe Lu, Seema Jain, Tomás M. León, Lauren A. White · BMC Public Health · 2026

Abstract Background Infectious disease surveillance is an essential component of public health for preventing and mitigating outbreaks. Systematically applying statistical methods for anomaly detection to surveillance data can expedite outbreak response through early warning. A commonly used approach is the usage of spatiotemporal scan statistics as implemented in SaTScan, a software that analyzes spatiotemporal data to identify clusters of events over space and time that deviate from expected values. Some health departments identify outbreaks and prioritize resources using SaTScan for early cluster detection for diseases such as salmonellosis, legionellosis, and COVID-19. However, as a standalone software, SaTScan v10.2.1 does not provide functionality to easily disseminate visual cluster results over time in a way that is tailored to epidemiologists’ needs for real-time disease surveillance. Results We developed an open source dashboard that provides a customizable framework for displaying results and facilitating the use of SaTScan for public h

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