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Start Over You searched for: Subjects COVID-19 -- epidemiology Remove constraint Subjects: COVID-19 -- epidemiology Publication Year 2020 to 2021 Remove constraint Publication Year: <span class="from" data-blrl-begin="2020">2020</span> to <span class="to" data-blrl-end="2021">2021</span>

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2. Prevalence of risk factors for severe COVID-19 disease: implications for children and youth with special health care needs

3. COVID-19 vaccination associated with reductions in COVID-19 mortality and morbidity in the United States, and an approach to valuing these benefits

9. Associations between county-level vaccination rates and COVID-19 outcomes among Medicare beneficiaries