COVID-19 Outbreaks at Two Construction Sites - New York City, October-November 2020.

During October 23-November 16, 2020, the New York City Department of Health and Mental Hygiene investigated COVID-19 outbreaks at two construction sites. Challenges in adhering to the New York State Department of Health "Interim COVID-19 Guidance for Construction" were reported. To minimize outbreaks, jurisdictions should increase tailored outreach to the construction industry emphasizing infection prevention.