The UK's socialized medical system tracks the percentage of their population that already has Covid antibodies in their system, either via vaccination or a prio

The UK's socialized medical system tracks the percentage of their population that already has Covid antibodies in their system, either via vaccination or a prior infection, or both. As of a month ago, about 99% of their population has Covid antibodies. I doubt things are very different here. https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/articles/coronaviruscovid19latestinsights/antibodies https://www.ons.gov.uk/peoplepopulationandcommunity/healthan...