Herd Help

Earlier this week, the 165th million American was fully vaccinated, lifting the overall US vaccination rate to 50%, and the percentage of Americans over 18 to 70%. Prior to the very contagious Delta variant, herd immunity was thought to occur with 75%-80% of the 18+ population being vaccinated. Now, it is believed to be in the 85%-90% range. Like the seasonal flu, we should primarily focus on deaths/day, not cases/day.