Åkesson has been away from work since just after September's elections, suffering from exhaustion. He has been replaced temporarily as leader by the party's group leader in parliament, Mattias Karlsson.
There is still uncertainty how the party would deal with any new election, should it decide to vote down the minority government's budget next week. The Sweden Democrats still have not said how they plan to vote in parliament, and new elections could possibly be around the corner if the red-green government fails to get its budget approved by the Riksdag. With Jimmie Åkesson ill, that could mean the Sweden Democrats would have to campaign without their leader.