Rapid implementation of mobile technology for real-time epidemiology of COVID-19

The rapid pace of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic (COVID19) presents challenges to the robust collection of population-scale data to address this global health
crisis. We established the COronavirus Pandemic Epidemiology (COPE) consortium to bring together
scientists with expertise in big data research and epidemiology to develop a COVID-19 Symptom Tracker
mobile application that we launched in the UK on March 24, 2020 and the US on March 29, 2020 garnering
more than 2.8 million users as of May 2, 2020. This mobile application offers data on risk factors, herald
symptoms, clinical outcomes, and geographical hot spots. This initiative offers critical proof-of-concept for
the repurposing of existing approaches to enable rapidly scalable epidemiologic data collection and
analysis which is critical for a data-driven response to this public health challenge.