Prof. Alexandrova: A vaccine is needed for permanent protection against COVID-19

Prof. Radostina Alexandrova

The vaccine does not prevent people who have already suffered from this coronavirus, said Prof. Alexandrova

“People who have been infected build immunity, but we do not know how long the immune response lasts, so for permanent protection – they must be vaccinated after a certain period of time,” Prof. Radostina Alexandrova, a virologist at the Bulgarian Academy of Sciences, told BNR. to a claim by US scientists that vaccinated people may be carriers of the coronavirus.

She stressed that scientific data confirm that the vaccine does not interfere with people who have already suffered from this coronavirus.

According to her, it is better to reinsure and wear masks, even from people who have COVID-19 and vaccinated people, than to take unnecessary risks.

“The fact that there are already vaccines does not automatically mean that we can return to our previous way of life. We still do not know how long the vaccine will keep us. More time is needed to find answers to these questions and we must not put health at risk. “

Prof. Alexandrova stressed that it is very important that research on vaccines does not stop, because more than one vaccine is needed.

“Each vaccine has its advantages and disadvantages. It is quite possible for one group of people to be suitable for one type of vaccine and for another – another. … It is already the fourth phase of research – post-marketing, when vaccines are already entering real life and find their much wider application, “she said.

Concerned about the vaccine’s “introduction of a foreign genetic code into the cells” of the immunized person, the virologist categorically explained that RNA vaccines could not interfere with human genetic information.

“Genetic information in nature goes from DNA to messenger RNA and protein. Trying to change that is like changing the flow of water. As for the adenoviruses used in Astra Zeneca and Russian vaccines.” Satellite V “, it uses adenovirus as a carrier that actually imports a gene of the virus that causes COVID-19. However, I want to remind you that each of us has been repeatedly infected with adenoviruses – they are one of the most common causes of The most serious evidence that they cannot integrate into our genome comes from our own experience, “added Prof. Alexandrova.