The vaccines against covid-19 have had an enormous effect and the third dose is the absolute best protection against serious illness for fragile groups, says Lena Hallengren.
However, the fact that the infection seems to be spreading in some countries despite high vaccination coverage raises questions.
What happens if everyone gets vaccinated but covid-19 continues to mutate and spread?
SVT: When should we stop with restrictions if an increased vaccination coverage does not lead to a reduced spread of infection?
- I can not really answer that, says Lena Hallengren.
See more in the video above.