Mark Kangogo, 33, has been provisionally suspended after tests showed the presence of two prohibited substances in his system.
Kamila Valieva, a 15-year-old figure skating star, tests positive for a banned heart medication before the Beijing Olympics Games, according to Russian media.
Marseille prosecutor opens investigation targeting members of Bahrain Victorious team “for acquisition, transport, possession, import of a substance or method prohibited for use by an athlete without medical justification”.
Andrey Silnov won the high jump title at the 2008 Beijing Olympics, and Natalya Antyukh was the gold medallist in the women's 400-metre hurdles at the 2012 London Games.
Florence Jepkosgei Chepsoi, who finished second at the 2019 Jakarta Marathon, was sentenced to one year of community service after she pleaded guilty to falsifying documents presented to the Kenyan doping agency.
Athletics Integrity Unit said in a statement that a charge was issued against Wanjiru for "use of a prohibited substance/method", but the Kenyan said he was clean and had never used doping.
The AIU's announcement comes after the World Anti-Doping Agency (WADA) decided last month to ban Russia for four years from major global sporting events, including the 2020 Tokyo Olympics and the 2022 World Cup in Qatar, over manipulated doping data.
The Athletics Integrity Unit had given Russia an extension from the original deadline of December 12 in the case, which could impact the country's ability to compete in the sport at the Olympics in Tokyo.
The World Anti-Doping Agency has recommended that Russia be declared noncompliant, setting up a showdown for Olympic eligibility.
The American anti-doping authority said in its report the highest-profile track and field coach in the world had attempted to use prohibited methods on multiple athletes.
USADA says that two, three-member arbitration panels determined Salazar and Jeffrey Brown, a Texas endocrinologist who treated many of Salazar's athletes, should be banned for "orchestrating and facilitating prohibited doping conduct."
Coleman started well and extended his lead down the stretch to win in 9.76 seconds. Defending champion Justin Gatlin finished second in the marquee event of the championships. Andre de Grasse of Canada was third.
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