Standardized hazard rate ratios (with 95% confidence intervals) for COVID-19 cases among unvaccinated persons compared with persons vaccinated with a Pfizer-BioNTech primary series and percent reduction in hazard rate among vaccinated persons compared with unvaccinated persons by age group and weeks since completing vaccination—22 U.S. jurisdictions, January 16 to May 28, 2022.
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Standardized hazard rate ratios (with 95% confidence intervals) for COVID-19 cases among unvaccinated persons compared with persons vaccinated with a Pfizer-BioNTech primary series and percent reduction in hazard rate among vaccinated persons compared with unvaccinated persons by age group and weeks since completing vaccination—22 U.S. jurisdictions, January 16 to May 28, 2022.
创建时间：
2023-09-20
