Household Secondary Attack Rates of SARS-CoV-2 by Variant and Vaccination Status: An Updated Systematic Review and Meta-analysis.

JAMA Netw Open · 2022 · PMC9051991 · PMID 35482308

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an increasing trendno p-value reported

Despite large heterogeneity in SAR estimates over time, particularly during the early stages of the pandemic, an increasing trend is visible in Figure 1 .

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