As of this week, 63% of the adult population in the United States has received at least one dose of a COVID-19 vaccine, and 54% are fully vaccinated. Per the National Institutes of Health, by the end of 2020 a third of the U.S. population (100 million) had natural immunity from having contacted COVID-19 and survived. As of today, I would imagine there at least 30 million more who have natural immunity. I have found no data on the overlap of those who have natural immunity and have also been vaccinated. I am sure there are some.
Back in early 2020 when this crisis started, we were told things would be much better when we reached here immunity (70% of us had been vaccinated or had contracted COVID-19). Based on the above statistics, it would seem we are well past the 70% benchmark, and at least at 75% (possibly 85%) are protected to as great a degree as possible. There are some experts who say immunity is stronger in those who have had COVID-19 than those who have only been vaccinated.
What puzzles me, presuming I am correct about herd immunity being reached, is this: So why are both new COVID-19 cases and deaths rising?
Cmdr. WAYNE L. JOHNSON
Judge Advocate General’s Corps, U.S. Navy (retired)