In contrast to "immunity passports", mentions of Covid-19 "immunity" in general have risen steadily since January 20th, dramatically accelerating from March 11th, though mentions have begun dropping in the last few days.
In contrast to "immunity passports", mentions of Covid-19 "immunity" in general have risen steadily since January 20th, dramatically accelerating from March 11th, though mentions have begun dropping in the last few days.