COVID-19 Cases by Vaccination Status

As a reminder: All data are preliminary and subject to change.

Dashboard Updated: Weekly on Friday

COVID-19 Rates by Vaccination Status

The first part of the dashboard shows the rate of COVID-19 infections, hospitalizations and deaths in people who are fully vaccinated, partially vaccinated and unvaccinated. At the top of the page, you can select the following options: infections, hospitalizations or deaths. You can also select the week since January 2021.   

Comparing rates among the three groups is a more accurate way to see how well the vaccine is working than looking at the proportion (percent) of COVID-19 cases that are unvaccinated. The proportion of COVID-19 cases will increase among vaccinated people as vaccination coverage (the percent of the population that is vaccinated) increases. Vaccine effectiveness is how well the vaccine performs in the real world. It tells us how much the risk of disease decreases among vaccinated people compared to unvaccinated people. The greater the risk of disease drops in the vaccinated group, the greater the vaccine effectiveness.

COVID-19 Vaccine Breakthrough Cases

The second part of the dashboard shows COVID-19 vaccine breakthrough cases. It shows the number of COVID-19 vaccine breakthrough infections, hospitalizations, and deaths in Virginia among people who were fully vaccinated. The data can be viewed for the state or health region by week. You can select the week at the top of the page and select the health region under “Vaccine Breakthrough Cases”. More information about VDH’s health regions can be found here.

A COVID-19 vaccine breakthrough infection is when a person tests positive for SARS-CoV-2 (the virus that causes COVID-19) 14 days or more after their second dose of Pfizer or Moderna COVID-19 vaccine or a single dose of the Janssen (Johnson & Johnson) COVID-19 vaccine. A death associated with a vaccine breakthrough case must meet the COVID-19-associated mortality criteria.

Even when a vaccine is highly effective, a small percentage of people who are fully vaccinated will still get COVID-19 if they are exposed to the virus. 

  • Because no vaccine is 100% effective, it is expected to see some fully vaccinated people get infected. 
  • In most cases, these people do not have symptoms or have only mild symptoms. These infections might also be shorter in duration.
  • Breakthrough cases occur for all vaccine preventable conditions.