Infection rate and factors affecting close contacts of COVID-19 cases: A systematic review.

J Evid Based Med · 2022 · PMC9877962 · PMID 36513958

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an increasing trendno p-value reported

However, the point of estimation of each subgroup showed an increasing trend, which was 9.9% (95% CI: 5.4%, 14.4%) in Q2 2020, 13.3% (95% CI: 8.6, 17.9%) in Q3 2020, and 20.5% (95% CI: 2.6%, 38.4%) in Q4 2020 and later, shown in Supplementary Figure S8 .

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