My work involves studying how infectious diseases spread between individuals, and how to design efficient vaccination strategies to mitigate outbreaks and epidemics.

I am part of the HPRU in Immunisation, and I work on evaluating and improving the UK vaccination program, including economic evaluation of vaccines.

I also study transmission of Ebola virus disease, especially examining the recent outbreak in West Africa. I develop models that can help determine optimal vaccination deployment schemes in the event of a new EVD outbreak, as well as methods for assessing new vaccines during outbreaks. 

My general research interests are in the role of population heterogeneity in epidemics, and vaccination planning and evaluation. I work on influenza, respiratory viruses, Ebola virus disease, zika, and theoretical aspects of disease transmission and control.