My research focuses on the design and evaluation of behaviour change interventions to prevent trachoma and diarrhoeal diseases, mainly within cluster-randomised controlled trials. I am currently leading a study on the menstrual health of teenagers with Down syndrome in the UK and I am the data analyst for a large trial of an early intervention for children with developmental disabilities in Rwanda. I have recently completed work on two clinical trials of interventions to interrupt trachoma transmission in Ethiopia. The "Stronger-SAFE trial" is a large, four-arm cluster-randomised controlled trial to test whether enhanced azithromycin treatment (two doses, two weeks apart) combined with targeted transmission-interrupting strategies (face washing and fly control) can more effectively eliminate trachoma than current approaches. I am leading the development and evaluation of the face washing intervention tested in this trial. In the FA-WASH trial we are exploring whether face washing with soap removes Chlamydia trachomatis bacteria from children's faces better than washing with just water.

My PhD research was conducted in Lusaka, Zambia and involved the design and evaluation (outcomes and process) of a multiple behaviour change intervention to control childhood diarrhoea through exclusive breastfeeding, handwashing and use of oral rehydration salts.

I have conducted formative research and been involved in trials of behaviour change interventions in Asia (India, Indonesia, Nepal) and Africa (Zambia, Nigeria, Ethiopia, Kenya, Tanzania, Ghana, Rwanda).