Laboratory-confirmed COVID-19 cases reported to the NYC DOHMH were aggregated by week of diagnosis and age group (<1, 1-4, 5-14, 15-24, 25-44, 45-64, 65-74, and 75+ years) for each of the 42 United Hospital Fund neighborhoods in NYC, according to the patient’s residential address at time of report.

The mortality data, from deaths registered and analyzed by the NYC DOHMH, combined confirmed and probable COVID-19-associated deaths.

The network model simulated intra- and inter neighborhood transmission of COVID-19 and assumed susceptible-exposed-infectious-removed (SEIR) dynamics, per the following equation: