With 30% of the population vaccinated, of which 700,000 with a booster dose, and with 50% immunized in the capital, Bulgaria may have reached a pretty good collective immunity, health expert of the Metropolitan Municipality prof. Todor Kantardzhiev told BNR.

The epidemiologist pointed out that the omicron variant has passed through a large part of the Bulgarian population, but children and people with the booster have got through it more easily. As with the Delta and the Wuhan variant, older people, people with chronic diseases and the unvaccinated have had a more severe and even fatal course of omicron.

The professor noted that currently mostly booster doses are administered, with lower mortality in areas where immunization rates are higher. 

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