In response to some governments suggesting that detection of COVID-19 antibodies could serve as the basis of an “immunity passport” that would allow people to travel or return to work assuming they are protected from contracting again or spreading the coronavirus, the World Health Organization issued a warning that said such a program is not backed up by scientific evidence.
“There is currently no evidence that people who have recovered from COVID-19 and have antibodies are protected from a second infection,” the WHO said in a statement Friday.
No study, as of April 24, has evaluated whether the presence of antibodies guarantees immunity to subsequent infection of COVID-19 in humans, the organization said.
The WHO said people who have tested positive might be prone to ignore public health advice and “increase the risks of continued transmission” to other people.
The warning comes as some states in the U.S. look to ease social distancing restrictions and to let some nonessential businesses reopen.
States like Texas, Georgia, Oklahoma, while all taking a different approach, are now reopening businesses to jumpstart their economies. Georgia, despite criticism from President Donald Trump, will allow many businesses to reopen this week, including tattoo parlors, movie theaters, bowling alleys and more.