Sochi Olympics organizers said 2,500 doping tests will be conducted at the Winter Games next February, surpassing the total at the Vancouver Games four years ago.
Alexei Slautin, the head of the Sochi 2014 doping control committee, said 13 doping control sites will operate during the games, with 10 stationed at various venues and three in the Olympic Village.
According to the International Olympic Committee, 2,149 doping tests were performed in Vancouver.
Slautin, speaking on a government website this week, also said 600 tests would be carried out at the Sochi Paralympics.
Last month, the Sports Ministry said 570 trained "specialists" would collect blood and urine samples at the Sochi Games. In Vancouver, by comparison, there were 500 doping personnel.
The first Winter Olympics in Russia take place Feb. 7-23.
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