25 vaccinated Bulgarians save one life, Professor Todor Kantardzhiev told the Bulgarian National Television. According to the expert, the number of people willing to receive Covid-19 vaccines has decreased, because people have received contradictory messages. If a large part of the population remains unvaccinated, this country will face another wave of Covid-19 in the autumn months, contends Professor Kantardzhiev. 

Those who have had Covid-19 and had moderate or severe symtpoms, as well as the people who have received two vaccine dozes do not need a third vaccine dose to strengthen their immune system, said Todor Kantardzhiev.