Response to the Coronavirus Disease 2019 Pandemic Among People Experiencing Homelessness in Congregant Living Settings in San Diego, California.

During April 2020-August 2020, a preemptive testing strategy combined with accessible isolation and symptom screening among people experiencing homelessness in congregant living settings in San Diego, California, contributed to a low incidence proportion of coronavirus disease 2019 (0.9%). Proactively addressing challenges specific to a vulnerable population may prove impactful.