Most experts agree that the current pandemic is a unique situation, but around that point the consensus ends. In Norway and Denmark, for example, they choose to close borders and schools. In Sweden and the UK, a different route is chosen.

The mainstay of Sweden and the UK's strategy is to reduce the spread rate as much as possible. In this way, the infection spreads over a longer period of time and this makes the situation more manageable for the healthcare system.

Want to protect risk groups

In the United Kingdom, it is hoped to build up a herd immunity for a long time, says Patrick Vallance, scientific adviser to the British government according to TT.

- In this way, those who are at risk of dying from the disease, ie the elderly, could be protected, says Patrick Vallance.

Flock immunity means that if enough people in the group are immune to a disease, they can stop the spread and protect those individuals who are not immune. Usually, it is usually said that if six out of ten are immune, you can achieve herd immunity.

Must be slow

Former state epidemiologist Annika Linde tells TT that she perceives it as the Public Health Authority's strategy is that Sweden should achieve herd immunity.

- I believe that the strategy of the Public Health Authority is that we should achieve herd immunity, that as many people as possible should be infected and thus become immune, without getting seriously ill. However, it is important to stretch the course of the infection and cut the peak on the number of people who become ill at the same time, in order to facilitate the work of the care.

On the other hand, the public health authority's current state epidemiologist Anders Tegnell objects that it would be Sweden's goal to achieve herd immunity, although it is something that will probably be achieved in the long term.

- No, at least not that it should happen as quickly as possible. On the other hand, we begin to understand that the virus will not stop spreading until we reach the herd immunity. But it must be done calmly, slowly and controlled so that the healthcare system can manage it, we should not rush it.