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More Than Two-Thirds of People Have Covid Antibodies, WHO Says

  • Blood sample studies indicates big surge in antibodies in 2021
  • Studies show vaccines help against severe Covid, WHO says
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Explain This: How mRNA Covid Vaccines Work

More than two-thirds of the world’s population probably have significant levels of Covid-19 antibodies, meaning they have either been infected or were vaccinated, the World Health Organization said. 

So-called seroprevalence rates surged to 67% in October from 16% in February of 2021, the WHO said, in a summary of studies from around the globe. Given the emergence of the fast-spreading omicron variant, the figure is probably even higher now.