According to Jan Albert, the regional differences in the spread of infection can vary greatly between different areas and between cities.
But even within an individual city, the differences can be large.
- It can vary district by district, between different schools or workplaces, he says in SVT's Aktuellt.
Therefore, coronary restrictions should be adapted to the regional and local situation.
After a local outbreak in Strömstad in western Sweden, the municipality has introduced new, tougher restrictions, something Jan Albert thinks is wise.
- In the situation that you (Strömstad) are in, it is very reasonable to take much tougher measures than what is needed in municipalities that have a very small spread of infection, he says.
Mapping of virus mutations
Both Jan Albert and epidemiologist Tove Fall believe that new, mutated coronaviruses, such as the British virus, are a cloud of concern.
However, mutated viruses can be a little easier to detect and detect when the spread of infection is a little lower.
- When you see one or a different pattern or that it spreads in a different way, for example if it hits young people harder - then it could be a new virus version, Tove Fall tells SVT.
Jan Albert and his colleagues at Karolinska are currently working on trying to map different virus variants, so-called sequencing, a work that will be completed shortly.
- We will have much better control within a few weeks, he says.
Jan Albert states, however, that as long as local and national recommendations are followed, the risk of new viruses, such as the British virus, spreading is minimal.
- If we get a lot of infection, the British virus will run away, but if we do not get any infection, it does not matter which virus we have.