177.4 million Americans have been fully vaccinated, 53.4% of the population. 40 million cases of Covid-19 have been reported. Assuming no one gets Covid-19 twice, that 53.4% of those testing positive for Covid-19 are vaccinated, and that reported cases are half of all cases, 215 million Americans, or 64.6%, have some Covid-19 protection. Assuming the current vaccination rate/week continues, by Thanksgiving the percentage of protected Americans should be 72.5%. Decent.