IAAF has studied alleged Kenyan cover-up since March

By Ian Chadband LONDON (Reuters) - Athletics' world governing IAAF has countered suggestions it was lax in investigating claims of a doping cover-up in Kenya by reporting on Tuesday that its ethics commission has been studying the allegations for nine months. The International Association of Athletics Federations also said accusations of corruption by three senior Kenyan athletics officials were referred to its independent commission in March. The confirmation of a long-standing investigation in