Background: The "September epidemic" is a well-described phenomenon of increased pediatric asthma-related health care utilization from August to September each year. The coronavirus disease 2019 (COVID-19) pandemic has brought about significant changes in health care utilization, warranting an investigation into its impact on the September epidemic.
Objective: Our aim was to identify the impact of COVID-19 in asthma-related health care utilization, specifically in the September epidemic.