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The Vaccination Outcomes data dashboard tracks and compares the rates of COVID-19 infections, hospitalizations, and deaths among unvaccinated and vaccinated people, showing how vaccination reduces the risk of severe outcomes from COVID-19.

Related blog from the Public Health Insider (posted Sept. 3, 2021):
New data dashboard tracks COVID-19 risk for unvaccinated people compared to vaccinated people


Return to the COVID-19 data dashboards homepage

View the dashboard on a web-enabled mobile device (phones and tablets)

View details about calculation method in the technical appendix

Share our page at www.kingcounty.gov/covid/data/vaxoutcomes

Select the down-arrow icon at the bottom-right of the dashboard for other formats


To account for delays in reporting of cases among vaccinated individuals, PHSKC has implemented an internal process for linking COVID-19 and immunizations records using a probabilistic matching algorithm. Matched records are manually reviewed to identify possible false positive records (typically less than 1% of matches). This process has identified over 12,000 additional cases in the past 30 days. These "suspected" breakthroughs have been added to the case, hospitalization, and death counts and rates reported in this dashboard.

Hover your cursor over the dashboard to view details about the data.