On February 13, 2009, IBU announced Iourieva, as well as two other Russian team members, Olympic champion Albina Akhatova and world champion Dmitri Yaroshenko, tested positive for EPO during the World Cup in Östersund.

[4] Made her World Cup debut in January 2005 in 15 km individual race at Antholtz-Anterselva finishing 43rd.

Starting with the World Championships finished in top-8 in 8 out of 11 races including first three podiums at Lahti and Oslo-Holmenkollen.

However, she was stripped of all results of the season following revelation of the positive doping test taken in December at Östersund.

Iourieva's disqualification term expired on December 4, 2010, and she revealed plans to return to the sport and to start her career in biathlon anew.