Berlin: The World Health Organization is cautioning against the idea of “immunity passports." It says there is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected against a second infection.
The concept of “immunity passports" or “risk-free certificates" has been floated as a way of allowing people protected against reinfection to return to work.
But the Geneva-based UN health agency says in a scientific brief released Saturday that more research is needed. It says that “at this point in the pandemic, there is not enough evidence about the effectiveness of antibody-mediated immunity to guarantee the accuracy of an 'immunity passport' or 'risk-free certificate.'" It argues that people who