The United States is approaching a plateau in vaccination rates at a perilous moment as the highly transmissible Delta variant has become the dominant strain.
People are throwing away their masks and going to restaurants, movies, and traveling as they did in the time before the coronavirus pandemic emerged. New Covid-19 cases have doubled during the last three weeks, with the vast preponderance of hospitalizations and deaths among people who have not been vaccinated. Slightly more than 48% of the population is fully vaccinated, and nearly half of unvaccinated Americans say they won’t get the jab. Some states in the South and Midwest have vaccinated less than 40% of their populations.