A late summer 2021 study of 800,000 people in Israel dated August 28 found that natural immunity in people who have recovered from an earlier COVID-19 infection is vastly superior to the immunity acquired by vaccination using two of the major vaccines in use. | A late summer 2021 study of 800,000 people in Israel dated August 28 found that natural immunity in people who have recovered from an earlier COVID-19 infection is vastly superior to the immunity acquired by vaccination using two of the major vaccines in use. |