How does this match with this information: "CDC: Nearly 60% of Americans have natural COVID-19 antibodies from prior infection" https://seekingalpha.com/news/

How does this match with this information: "CDC: Nearly 60% of Americans have natural COVID-19 antibodies from prior infection" https://seekingalpha.com/news/3827106-nearly-60-of-americans-have-natural-covid-19-antibodies-from-past-infection https://seekingalpha.com/news/3827106-nearly-60-of-americans...