Therefore, the spread of infection in Sweden is increasing

State epidemiologist Anders Tegnell announced on Thursday that Stockholm County, Västra Götaland County and Östergötland County will have stricter restrictions to reduce the spread of infection.

- We do not have a vaccine or drug that can slow down the infection or slow down the spread of infection, what you can do is find different restrictions and in the worst case go towards something similar to a "lockdown", says Niklas Arnberg, professor of virology at Umeå University.