COVID-19 — Worldwide/Unknown
Given the pressing need to reopen economic activity prior to the availability of a vaccine, the US and other nations are investing in contact tracing as a core component of the coronavirus disease 2019 (COVID-19) response. An estimated 75% of infected contacts need to be quarantined to contain COVID-19. We evaluated case investigation and contact tracing outcomes in San Francisco, California, during shelter-in-place restrictions.
Methods
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San Francisco residents diagnosed with
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