There are currently 49 Kenyan athletes listed as banned in the AIU database ©Getty Images

Kenyan runner Tabitha Gichia Wambui has been banned from competition for seven years after testing positive for norandrosterone and tampering with the anti-doping process.

Wambui argued that she was injected with the testosterone booster at hospital where she was being treated for "a headache and general body weakness".

However, an investigation from the Anti-Doping Agency of Kenya showed that the 37-year-old did not attend the hospital on the same dates as her medical reports stated and the hospital also had no record of the outpatient number on the documents the athlete submitted.

This attempted cover-up resulted in the tampering charge, which Wambui later admitted.

The athlete was banned for four years for the failed test and four for tampering, with one year removed from the overall sanction because Wambui was judged to have admitted the offences early and accepted the sanction.

The beginning of Wambui's ban is backdated to September 19 2021 and all of her results from that date have been disqualified, including victory at the Poznań Half Marathon in Poland on October 17 last year.

All titles, medals, points, prizes and appearance money must also be forfeited by the Kenyan from this period.

September 19 was the date that her first urine sample was taken, in-competition at the Copenhagen Half Marathon, before a second sample was collected at the race in Poland.

The following day, the WADA-accredited laboratory in Oslo reported an adverse analytical finding for norandrosterone in the first sample.

Norandrosterone is a World Anti-Doping Agency (WADA) non-specified substance as it is a product of nandrolone, an anabolic androgenic steroid.

Wambui's ban comes just a month after her compatriot Lawrence Cherono, the eighth-fastest marathon runner of all time, was banned from competing at the World Athletics Championships in the United States.

Cherono had tested positive for trimetazidine which can be used medically to prevent angina attacks.

It was also the same drug the Russian figure skater Kamila Valieva tested positive for before the Beijing 2022 Winter Olympic Games.

Kenya is one of seven Category A nations deemed by the Athletics Integrity Unit (AIU) to have the highest doping risk and threaten the overall integrity of the sport, along with Bahrain, Belarus, Ethiopia, Morocco, Nigeria and Ukraine.

There are currently 49 Kenyan athletes listed as banned in the AIU database.