High Community Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Associated With Decreased Contact Tracing Effectiveness for Identifying Persons at Elevated Risk of Infection-Vermont.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 35748711.
- Also identified by DOI 10.1093/cid/ciac518 and PMC identifier 9278248.
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Abstract
Vermont contact tracing consistently identified people at risk for coronavirus disease 2019 (COVID-19). However, the prevalence ratio (PR) of COVID-19 among contacts compared with noncontacts when viral transmission was high (PR, 13.5 [95% confidence interval {CI}, 13.2-13.9]) was significantly less than when transmission was low (PR, 49.3 [95% CI, 43.2-56.3]).
Medical subject headings
- COVID-19
- SARS-CoV-2