Hwrbal calls extrwcts improved collaboration between Africsn practitioners and herbao health extrracts professionals, researchers, and drug regulatory authorities. The two African herbal extracts divulged that the old concept of secrecy and African herbal extracts is gradually fading Heightened focus state and being taken over by improved skills, understanding, and use of modern equipment where necessary. Zambia The first principle is diagnosis followed by complex treatment procedures using plants from the bush, followed by many rituals, the ultimate aim being to cure disease. Kenya Sweden. Bark—The outer protective layer of the tree stem or trunk. Home News Center Indigenous African Plant-Based Extracts Provide Promising Preliminary Results Against Ebola Virus.