Complex sentence: AHI has patients from 38 countries, the maximum coming from East African countries (such as Kenya, Tanzania and Uganda), South Africa and the Middle East, with a few coming in from USA and UK.
Split into simpler sentences: AHI has patients from 38 countries, the maximum coming from East African countries (such as Kenya, Tanzania and Uganda). Most patients are from South Africa or the Middle East, with a few coming in from USA and UK.