Fighter CEO Albert Burla said people "probably" would need a third dose of the Covid-19 vaccine within 12 months of receiving the second dose.

He added that vaccination against may be needed coronavirusfrom  annually.

"We need to see how things develop and how often we will have to be vaccinated. So, we have yet to see. "The most likely scenario is that we will need a third dose, sometime between six and 12 months after we are fully vaccinated." And then it will be performed annually revaccination . But it still needs to be confirmed. And, of course, the new species will play an important role. " Burla told CNBC .

Does the same apply to other vaccines?

Johnson & Johnson CEO  Alex Groski also told CNBC that people will be there every year vaccinated against covidium-19  , just like in the case of the flu.

Namely, scientists are still not completely sure how long vaccines protect. From the company Fighter  stated that their vaccine against covidium -19 up to six months after the second dose is 91% effective in protecting against coronavirus and more than 95% effective against severe disease. Modern, which uses technology similar to Pfizer, is very effective in a period of half a year.

However, experts believe that more data and research are needed to determine whether protection lasts beyond those six months.

Third dose

David Kessler, scientific adviser on covid-19 from the Biden administration, said today that Americans should expect to receive additional doses of the vaccine in order to protect themselves from new types of coronavirus.

"We analyze how long our immune system responds. That response seems to be strong, but over time it diminishes and there is no doubt that new species are a challenge to it. I think we need to keep in mind that we may need reinforcements. Says Kessler.

Fighter and Biontek announced in February that they were testing a third dose of covid-19 vaccine to better understand how our immune system responds to new forms of the virus.

In late March, the U.S. National Institutes of Health began testing a new coronavirus vaccine for the company. Modern, intended for protection against the problem species, which was first registered in South Africa.

Moderna CEO Stefan Bankel for CNBC  said yesterday that the company hopes to have an additional dose in the fall, ie the boost that is obtained after the first two doses of the vaccine.