Development and implementation of centralised, cloud-based, employee health contact tracing database and predictive modelling framework in the COVID-19 pandemic

At the onset of the COVID-19 pandemic in early March, 2020, it became apparent that non-electronic exposure investigations would not meet the demands required by the mounting number of employees with COVID-19 in the Mount Sinai Health System in New York City (NY, USA), a multicentre, academic medical institution and hospital system. New York City was an epicentre early in the pandemic, resulting in a peak of more than 6000 cases daily and more than 1000 deaths per day.1 Agile exposure investigation and contact tracing were crucial to containing the spread of COVID-19 among hospital staff.