I don't deny the fact several Kenyans are doped, but we have to look at this list with some different vision.
We have, in this list, athletes doped before 1999, such as Delilah Asiago.
We have athletes positive for a medicine for fertility, guilty because didn't inform IAAF only, who gave birth to a baby 6 months after the antidoping test, such as Lydia Cheromei.
We had who didn't open the door to the doctor because a lack of communication, like John Ngugi in 1989.
We had athletes tested for EPO after the worst competition of their life, immediately after coming back from a long therapy for "real" malaria, like Wilson Erupe Loyane.
We have athletes of 400m, who are not able to go in any international competition, and are not able to earn 1 DOLLAR from their activity, banned for some steroid, in the most stupid way, like Sakari and Koki and Elizabeth Muthoka.
We have athletes at that time coached by maroccan coach, after becoming Qatari, in training in Ifrane (Musa Amer Obaid), caught for steroids during a period without training for a stress fracture.
We have athletes caught for steroids in 2000, like Simon Kemboi.
We have athletes taking Methylephedrine, like Cyrus Njui, in Japan, having for this a ban of 8 months only.
We have athletes living and training in Japan, like Julia Mombi Muraga, caught in 2014 when already old, when her career was already at the end (2:26 in marathon in 2007, 2:34 in the last years).
And, especially, WE HAVE MORE THAN THOUSAND KENYANS RUNNING AROUND THE WORLD, so the number of tested athletes from that Country is higher than the athletes of any other Country. The number of positives seems high, but the percentage compared with the number of international competitors is low.
It's clear we need to carry out a very serious education with Kenyan athletes. The problem is that the educative messages can arrive to a limited number of top athletes only, not to the big number of NOT professional runners, not living in any training camp, not having any coach (the most part of time they train alone, or followed by an old athlete without any coaching experience, but original from their village), who continue to go to the pharmacist of the village when sick, or use "traditional methods" in case of some injury (for example, the wizard sucking liquid from the bursa of a knee, ancient system for draining).
The case of Bahrein is probably different. The Country has a permanent training camp in Kapsabet, involving several athletes (some of them still Kenyan), and there is a medical and physiotherapic assistance paid by the Country. I don't know what they do, but of sure the athletes are followed in more deep way (legal or illegal) than any top Kenyan national.