In Sweden, 76 percent of the population has now received at least one dose of covid-19 vaccine.
But in several countries, vaccine resistance is high, in Bulgaria, for example, only 18 percent have received the first dose, despite intensive campaign by the authorities.
Sweden's vaccine coordinator Rickard Bergström takes the situation very seriously.
- It is due to a combination of a general distrust of authorities and conspiracy theories.
This is not good and very worrying, he says in Aktuellt.
Try offers
Elsewhere in Europe, people are now trying in various ways to increase the willingness to vaccinate - in Germany you are offered beer and in France you have to be vaccinated to go to a restaurant.
A Swedish study is now underway to investigate whether more people want to be vaccinated if they are offered SEK 200 in compensation, which SR Ekot has previously reported.
How will it affect us in Sweden that the vaccination rate is low in other countries, for example in Eastern Europe?
- In the short term, we get an advantage, because we get more doses.
But it is a short-lived joy.
We can suffer from this, because we have many who travel here, such as truck drivers and tourists, and we get viruses here.
As long as there is active spread of infection, especially in our vicinity, it is a danger for us, it is not at all good what is happening right now, says Rickard Bergström in Aktuellt.