Study by Harvard Researcher Finds Countries with Lowest COVID-19 Vaccination Rates Have Fewer Cases of COVID than Fully Vaccinated Countries Posted on October 21, 2021 by stuartbramhall Comparing countries with various rates of percentages of their population fully vaccinated for COVID-19, they found that “countries with higher percentage of population fully vaccinated have higher COVID-19 cases per 1 million people.” Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Like Loading... Related