Spatiotemporal visualization for the global COVID-19 surveillance by  balloon chart

ConclusionsWe creatively used visualization integrating 7-dimensional epidemiologic and spatiotemporal indicators to assess the progression of COVID-19 pandemic in terms of transmissibility and severity. Such methodology allows public health workers and policy makers to understand the epidemics comparatively and flexibly.
Source: Infectious Diseases of Poverty - Category: Infectious Diseases Source Type: research