MBBS MSc PhD DTM&H
of International Health
I trained initially as a physician specialising in infectious and tropical diseases and HIV medicine, and continue to work in HIV medicine in London. I studied epidemiology at LSHTM with particular interests in care for people with HIV in developing countries.
I teach epidemiology, HIV medicine, TB and clinical tropical medicine, particularly to students on MSc Tropical Medicine and International Health, and the LSHTM Diplomas in Tropical Medicine and Hygiene (in London and in East Africa).
My main research interest is improving care for people with HIV in developing countries, and preventing TB. Major projects include a cluster-randomised trial investigating a point-of-care TB test and treat algorithm for people with advanced HIV disease in South Africa; evaluation of South African national roll-out of Xpert MTB/RIF, a new TB diagnostic test replacing smear microscopy; investigation of how best to use Xpert MTB/RIF among people attending clinics for HIV care; linkage to care after a rifampicin-resistant Xpert MTB/RIF result in South Africa; and a trial comparing a single round of weekly isoniazid/rifapentine to periodic treatment. In collaboration with colleagues in South Africa, I have been involved with the design, implementation and evaluation of an HIV care programme in workplace and community settings.
I lead a programme of tuberculosis research at the Africa Health Research Institute, KwaZulu-Natal, South Africa.
I supervise research degree students working on use of Xpert MTB/RIF in South Africa and Botswana; determinants of TB infection among young people in South Africa; pathways to TB care in Ghana; and the natural history of TB disease.