I am interested in the infection biology of protozoan parasites of livestock. I am particularly attracted to integrated approaches where we can learn about both host and parasite processes that are key to infection/disease progression – especially in the clinically relevant host, the cow. I work primarily on African trypanosomes, but also on Theileria parva , which together are the most significant pathogens affecting livestock in sub-Saharan Africa. I also work on Cryptosporidium parvum, a worldwide enteric pathogen of humans and livestock. My work aims to identify key host-parasite interactions that determine disease outcome, further our understanding of bovine immunobiology, and identify targets for interventions (e.g. drug & vaccine development).