https://www.sciencedaily.com/releases/2022/10/221026114403.htm

The study is published in the journal Nature Communications.

The researchers analyzed contact tracing and testing records for 644,029 cases and their contacts in New York City during the second pandemic wave between October 1, 2020 and May 10, 2021. Data was collected by the NYC Test & Trace Corps and the Department of Health and Mental Hygiene.