COVID-19 Contact Tracing in Two Counties - North Carolina, June-July 2020.

MMWR Morb Mortal Wkly Rep · 2020 · PMC7727500 · PMID 32970654

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an increasing trendno p-value reported

An increasing trend in the percentage of cases not reporting contacts was observed, from 26% during week 1 (June 1–7) to 48% during week 4 (June 22–28) of the assessment.

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