The Director-General of the World Health Organization on Monday said that no more than 2 to 3 percent of people around the world had likely developed coronavirus antibodies, 
according to Guardian News. 

This revelation poses a problem for countries looking to give "immunity passports" to allow people who have already been infected with coronavirus to reintroduce to society.

"Early data from some of the studies suggest that a relatively small percentage of the population may have been infected, even in heavily affected areas, no more than two to three percent," WHO Director-General Tedros Adhanom Ghebreyesus said during a press conference.

"Right now, we have no evidence that the use of a serological test can show that an individual has immunity or is protected from reinfection," said Maria Van Kerkhove, WHO's technical lead on coronavirus. 

In theory, antibodies can immunize a person from being reinfected by the same virus. However, researchers are uncertain if coronavirus antibodies will protect a person from reinfection.

"We want to emphasize that easing restrictions is not the end of an epidemic in any country," said Adhanom Ghebreyesus. "Ending an epidemic will require a sustained effort on the part of individuals, communities and governments to continue suppressing and controlling this deadly virus."

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