I am based in Cali, Colombia, and employed part time by CIDEIM and part time by LSHTM. I work largely on dengue, leishmaniasis, lymphatic filariasis and other parasitic and vector-borne diseases.
I previously worked at the Papua New Guinea Institute of Medical Research, and the Ahmadu Bello University in Kaduna, Nigeria (seconded from the Institute of Ophthalmology, London).
In 1998 I completed a PhD supervised by Bryan Grenfell in the Department of Zoology, University of Cambridge entitled 'Heterogeneity and the Epidemiology of Lymphatic Filariasis'. I also have a BA in Mathematics and a Diploma in Mathematical Statistics from the same university.