STOCKHOLM (AFP) - The anti-immigration far-right is expected to soar in Sweden's September 9 general election, capitalising on voter discontent as Swedes punish traditional parties over immigration, integration and health care. Prime Minister Stefan Lofven's Social Democrats, who have dominated Swedish politics since the 1930s, will remain the biggest party in the country but likely with a record low score, polls suggest. The far-right Sweden Democrats (SD) are heading to make the most gains and come in a close second, followed by the conservative Moderates. A Skop institute poll published on Sunday, a week before the election, credited the Social...