Public-health officials ruined many lives by insisting that workers with natural immunity to Covid-19 be fired if they weren’t fully vaccinated. But after two years of accruing data, the superiority of natural immunity over vaccinated immunity is clear. By firing staff with natural immunity, employers got rid of those least likely to infect others. It’s time to reinstate those employees with an apology.
For most of last year, many of us called for the Centers for Disease Control and Prevention to release its data on reinfection rates, but the agency refused. Finally last week, the CDC released data from New York and California, which demonstrated natural immunity was 2.8 times as effective in preventing hospitalization and 3.3 to 4.7 times as effective in preventing Covid infection compared with vaccination.