The effect of the vaccine and natural immunity are gradually weakened. “This applies to all currently known COVID-19 mutations, and now we’re going to find out with the Omicron strain,” said Pfizer CEO Albert Burla.
The expert expressed confidence that Omicron poses a serious problem, as the new version envisages the concept of a fourth dose and annual vaccination over the next 10 years.
“The virus will not go away, it will probably remain for a decade. It is endemic, it is able to create options according to which it will somehow continue to coexist with humanity for many years, ”said Mr. Burla.
“The vaccine and natural immunity weaken over time. We have scientifically confirmed this. This is why I predicted that we would need a series of three doses and then a yearly booster to maintain good immunity. But this seems to be a very difficult task, because the new option involves the introduction of a fourth dose before the start of the annual vaccination, ”he added.