Ali Mirazimi, professor of clinical virology at the Karolinska Institute, states that the virus variants that are most contagious have the property of being able to bypass antibodies that we get when we vaccinate.
If new variants appear in China, where the spread of infection is currently enormous, there is a risk that such variants will also spread outside China's borders.
- But we must remember that we have had a real spread of omicron in Sweden, Europe and the rest of the world.
In this way, we have built up protection and immunity both in individuals and in society.
New variants will always appear, but the protection in Sweden and Europe is very good, says Ali Mirazimi.
Hear Ali Mirazimi in the clip above about why he does not think requiring tests upon entry from China is an effective measure.