MOSCOW, March 1 – RIA Novosti. Less than 10% of the world's population has developed antibodies to coronavirus, vaccination is the only way to achieve herd immunity, said Sumiya Swaminathan, chief researcher at WHO.
In an interview broadcast on Twitter of the organization, Swaminathan noted that WHO is monitoring studies that analyze foci of infection in some cities around the world. Although the research results show that sometimes at least half of the city's population has antibodies to coronavirus, this does not allow us to talk about the achievement of herd immunity. “WHO is monitoring these sero-epidemiological studies, at last count, there were about 500 of them. And if we consider them together, it turns out that less than 10% of the world's population has antibodies to this virus, “Swaminathan said.
“Of course, in places, for example, in densely populated urban areas, there are foci in which 50-60% of the population has been exposed to the virus and have antibodies. However, this does not mean that an entire city, province, state or country has achieved herd immunity.” the expert noted, explaining that when residents of such a settlement leave it without antibodies, they are still at risk of infection.
The only way to achieve herd immunity on a global scale is through vaccination, Swaminathan said.