June 9, 2021

CDC: Decreases in COVID-19 cases, ED visits, admissions, deaths, since vaccinations began

By: Judy Mathias

Editor's Note

This study by researchers from the Centers for Disease Control and Prevention (CDC) finds that since adult COVID-19 vaccinations began in the US in December 2020, there has been a:

  • 40% decline in cases
  • 59% decrease in emergency department (ED) visits
  • 65% drop in hospital admissions
  • 66% decline in mortality.

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These declines were seen more in older adults, who had higher vaccination coverage, than in younger adults who had lower coverage.

The researchers also found that the administration of COVID-19 vaccines has steadily declined in adults since mid-April 2021. This suggests that efforts by state and local jurisdictions to increase coverage of all eligible age groups could result in further reductions in COVID-19 cases and severe outcomes, the researchers note.


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