Almost half the US population has now received at least one COVID vaccination. That strong inoculation rate, coupled with the high number of infected people who have developed some sort of immunity, has caused US coronavirus contagion rates and deaths to plummet in recent weeks. New COVID cases have plummeted 85 percent since a peak in January, while deaths have dropped to a 10-month low. We track new COVID-related cases and deaths in the US over the past 14 months.