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Assessing Testing Strategies and Duration of Quarantine in Contact Tracing for SARS-CoV-2: A Retrospective Study of San Francisco’s COVID-19 Contact Tracing Program, June–August 2020
Author(s) -
Michael Reid,
Patric V Prado,
Hannah K. Brosnan,
Alexandra Ernst,
Hilary Spindler,
Jessica Celentano,
M Wall-Shui,
Darpun Sachdev
Publication year - 2021
Publication title -
open forum infectious diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.546
H-Index - 35
ISSN - 2328-8957
DOI - 10.1093/ofid/ofab171
Subject(s) - quarantine , contact tracing , covid-19 , medicine , coronavirus , virology , pandemic , disease , outbreak , infectious disease (medical specialty) , pathology
We sought to assess the proportion of elicited close contacts diagnosed with coronavirus disease 2019 at the start of and before exiting quarantine in San Francisco. From June 8 to August 31, 6946 contacts were identified: 3008 (46.3%) were tested, 940 (13.5%) tested positive, and 90% tested positive in the first 9 days of quarantine.

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