COVID-19 Vaccine Demographics

This Virginia Immunization Information System (VIIS) is a live data set that continually receives new information. Data review processes are ongoing to improve the quality of the information. On July 7, 2021, the vaccine dashboard was updated to include additional information on race. This update affected approximately 2 million records. Previously the race field for many records was “unknown” or “not reported”. On February 1, 2022 updated logic now includes new booster and age recommendations for COVID-19 vaccines.

The percentage of Native Americans that are vaccinated can be above 100% for two reasons.

There are small numbers of vaccinations and small population estimates for Native Americans at the city/county level in Virginia. VDH gets population estimates from the National Center for Health Statistics (NCHS). For example, there were 3 Native American vaccinations in a county. Population estimates say there were only 2 people who identify as Native American in that same county. This means that the data would say there were 3 vaccinations over 2 people in the population. This would equal 150%, or a percentage over 100%.
Some people may identify that they are Native American and multirace when they are getting their vaccine. They will be categorized as Native American only in the data system. This is because population estimates from NCHS do not include multirace as an option. If there was a multirace option, a person who identified as Native American and multirace would be in the multirace population estimates.