A provisional suspension may be imposed in other doping cases depending on the nature and circumstances of the case in question.

Last month, Chinese Taipei Wan Jin Shi marathon fifth finisher Salome Jerono Biwott, 37, was suspended after she tested positive for the second time to banned substances.

The 37-year-old faces a length eight-year ban reserved for second offenders of doping having been banned back in 2013.

The AIU said that Biwott blood sample had presence of a prohibited substance norandrosterone and have issued a charge against her, which makes her provisionally suspended from any athletics competition immediately.

"A provisional suspension is when an athlete is suspended temporarily from participating in any competition prior to a final decision at a hearing conducted under the IAAF Anti-Doping Rules or the Integrity Code of Conduct," AIU said in a statement.

Biwott, who was first hit with a two-year ban in 2013 when she failed a drugs test after winning the 2017 Standard Chartered Nairobi Marathon, is fresh from finishing second at Sao Paulo International Marathon in 2 hours, 37 minutes and 33 seconds on April 7.

Chepkirui, Kendagor and Biwott make it six, the number of Kenyan to be banned for doping in the last three months. They join World Half Marathon record holder Abraham Kiptum, Cyrus Rutto and Felix Kirwa.

In this year, others Kenyans who have failed in the anti-doping test are 2017 Tokyo Marathon champion Sarah Chepchirchir, former three-time world 1,500m champion Asbel Kiprop, Hilary Kepkosgei Yego, Samson Mungai Kagia, Olympic marathon champion Jemimah Sumgong and Lucy Kabuu.

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