BEIJING (AP) More than 600 doping tests have been conducted in the two weeks before the opening of the Beijing Games, and all came back clean.
Patrick Schamasch, the International Olympic Committee's medical director, said Thursday about 650 urine and blood controls had been carried out at various locations in China and abroad, including the athletes' village in Beijing and training sites in Singapore, Hong Kong and Britain.
"There have been no adverse results so far," he said.
The Olympic testing program began July 27 with the opening of the village. Athletes can be tested at any place and at any time.
A record total of 4,500 tests will be conducted through the end of the Aug. 8-24 games, compared with 3,600 in Athens in 2004.
There were 26 positive doping cases in Athens. IOC president Jacques Rogge reiterated Thursday that, based on mathematical probabilities, there could be 30 to 40 positives in Beijing.