With contemporary times calling them disease detectives, epidemiologists play a central role in investigating patterns and causes of disease in humans. “In the context of the novel Coronavirus (COVID-19), as epidemiologists our focus lies in reducing the risk and occurrence of negative health outcomes through research, community education and health policy”, says Hilary Kagume Njenge, a Kenyan epidemiologist employed by the World Health Organisation emergency hub for east and southern Africa in Nairobi, Kenya.