All studies of any infection must also consider the ecology of the host as well as of the infection itself and its pathogenesis. I have particular interests in the epidemiological dynamics of various virus infections of humans and other animals, including bovine tuberculosis, brucellosis, African horse sickness, canine rabies and emergent lyssavirus and henipavirus infections and the methods needed to study them. Bovine tuberculosis poses interesting challenges at the interface of science and policy and is an important disease and challenge. Funded studies include the emergence of zoonotic viruses in sub-Saharan Africa and rabies dynamics. A number of students work on the dynamics of emergent viral infections in bats, in particular Eidolon helvum, in Ghana. In addition to my research interests, I am also involved in the Cambridge-Africa programme, which focuses on building links between Cambridge and African Institutions and which aims to strengthen Africa's own capacity for a sustainable research.