Cumulative cases are still below 4.3%, so about 7% of the population hasn't had the opportunity to build up immunity through infection or vaccination yet. I gue

Cumulative cases are still below 4.3%, so about 7% of the population hasn't had the opportunity to build up immunity through infection or vaccination yet. I guess they'll either hit the herd immunity threshold soon or we get to find out that 100% is still not enough.