The anti-doping program for the Paris Olympics identified 45 violations, with five athletes testing positive during the Games, the International Testing Agency (ITA) announced Thursday.
The remaining 40 violations were detected before the event among competitors expected to participate.
In July and August, the ITA collected 6,130 samples from 4,150 athletes, testing urine, blood, and dried blood spots.
The program tested almost 39% of the athletes, marking a 4% increase from Tokyo 2020 and 10% higher than Rio 2016.
Countries with the largest teams—United States, France, China, Australia, and Britain—were the most tested. The ITA reported that nearly 90% of athletes participating in the Games had been tested at least once prior to the start.
The five athletes who tested positive during the Games came from Afghanistan, Bolivia, Congo, Iraq, and Nigeria.
Their substances included anabolic steroids and a diuretic, affecting sports such as judo, track and field, aquatics, and boxing.
These athletes were either disqualified or had their results annulled. Their disciplinary cases are being handled by the relevant sports governing bodies.
Samples from both the Games and pre-Games testing will be stored for 10 years, allowing re-analysis as testing methods improve.
Created by the International Olympic Committee in 2016, the ITA continues its mission to bring greater independence and integrity to global anti-doping efforts.
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