She noted that the organization is overseeing research on coronavirus outbreaks.

"WHO is monitoring these sero-epidemiological studies, at the last count, there were about 500. And when taken together, it turns out that less than 10% of the world's population have antibodies to this virus," she said in an interview published by WHO on Twitter.

Swaminathan stressed that the only way to obtain herd immunity on a global scale is to get vaccinated against COVID-19.

Earlier, an immunologist, Candidate of Medical Sciences Nikolai Kryuchkov, in an interview with FAN, commented on the situation with the pandemic.