FIG. 7.
The number of COVID-19 deaths per 10 000 inhabitants vs the percentage of fully vaccinated inhabitants in US counties. The markers represent the population's density: green dots—below 100, blue crosses—above 100 and below 12 000, and red stars—above 12 000. The data represented the period between May 1, 2021 and January 31, 2022 and were downloaded in June 2022 from CDC and USAFacts.
