What question did this study set out to answer?

To evaluate the impact of covid-19 vaccine scale-up on population-level mortality and incidence rates across United States counties.

April 27, 2022BMJOpen Access

Public health impact of covid-19 vaccines in the US: observational study

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Authors

ASAmitabh B. SutharCenters for Disease Control and Prevention JWJing WangPeking University VSVictoria SeffrenCenters for Disease Control and Prevention

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Implication

Observational study reveals lower covid-19 mortality and incidence in US counties with higher vaccination rates, highlighting the community-level protection of vaccine scale-up.

Key Points

To evaluate the impact of covid-19 vaccine scale-up on population-level mortality and incidence rates across United States counties.
Analyzed county-level case surveillance and vaccination administration data from 2,558 counties across 48 US states between December 14, 2020, and December 18, 2021 (132,791 county weeks).
Estimated the public health impact of a 10% increase in adult (≥18 years) vaccination coverage (at least one dose) and evaluated coverage tiers (0–9%, 10–39%, 40–69%, and ≥70%) across the alpha and delta variant periods using incidence rate ratios.
Over 30,643,878 covid-19 cases and 439,682 deaths were recorded across 132,791 county weeks.
A 10% improvement in county vaccination coverage was associated with an 8% reduction in mortality rates (95% CI 8% to 9%) and a 7% reduction in incidence (95% CI 6% to 8%).
Higher vaccination coverage levels consistently correlated with lower mortality and incidence rates across both the alpha and delta variant predominance eras.

Cite This Study

Suthar et al. (2022) studied this question.

synapsesocial.com/papers/6a1ea0f8d45d11304747da7d https://doi.org/10.1136/bmj-2021-069317

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Implication

Observational study reveals lower covid-19 mortality and incidence in US counties with higher vaccination rates, highlighting the community-level protection of vaccine scale-up.

Public health impact of covid-19 vaccines in the US: observational study

Discussion

Member takes

Implication

Key Points

Cite This Study

Public health impact of covid-19 vaccines in the US: observational study

Discussion

Member takes

Implication

Key Points

Cite This Study

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