The World Health Organization says there is no evidence that people who have had COVID-19 have antibodies that protect them from being infected with the virus.
WHO, in a statement Friday, warned against governments that have suggested issuing “immunity passports” or “risk-free certificates” which would allow people to return to work or travel in the belief that their antibodies would protect them from re-infection.
“People who assume that they are immune to a second infection because they have received a positive test result may ignore public health advice,” WHO said. “The use of such certificates may therefore increase the risks of continued transmission.”
There are now nearly 3 million COVID cases worldwide, with more than 197,000 deaths.