[The Conversation Africa] Professor George Warimwe should be a household name in Kenya. He's a leading scientist who has created a life-saving vaccine against Rift Valley Fever. He is also leading policy-changing work on Yellow Fever vaccines. Warimwe has now been awarded the Royal Society Africa Prize for his work on vaccine development and capacity building in Africa. Moina Spooner, from The Conversation Africa, spoke to Warimwe about his life as a vaccinologist.