• Affiliate Professor, Global Health
Timothy Hallett

Dept. of Infectious Disease Epidemiology
Imperial College London
Norfolk Place, Paddington
London W2 1PG
United Kingdom

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Timothy Hallett, PhD, is based at the Department of Infectious Disease Epidemiology in the School of Public Health at the Imperial College London. He does work with the Applied HIV Epidemiology research group centres on the development and application of mathematical models for interpreting surveillance  data, analyzing control trials and planning interventions. The overall aim of this research is to come to conclusions about the optimal use of limited resources in the response to HIV epidemic worldwide.

Dr. Hallett directs the HIV Modelling Consortium, which is a network epidemiologists, mathematical modelers and health-economists. He also works with UNAIDS and the Reference Group on Estimates, Modelling and Projections in developing the methods for calculating international AIDS statistics. For more details, see his profile.

  • PhD (University of London: Imperial College)
  • MSc (University of London: Imperial College)
  • BA (University of Cambridge)
Country Affiliations 
Health Topics 
  • Family Planning
  • Health Disparities
  • Health Economics
  • Health Financing
  • Health Information Systems
  • Health Policy and Advocacy
  • Hepatitis
  • HIV Transmission
  • Infectious Diseases (other than STDs)
  • Male Circumcision
  • Maternal Mortality
DGH Centers, Programs and Initiatives and Affiliated Organizations 

Hallett TB, Eaton JW. A Side Door Into Care Cascade for HIV-Infected Patients? J Acquir Immune Defic Syndr. 2013 Jul;63 Suppl 2:S228-32. doi: 10.1097/QAI.0b013e318298721b. PMID:23764640.

Eaton JW, Hallett TB, Epstein H. What might be the impact of sexual partnership "concurrency" behavior change communication campaigns? Sex Transm Dis. 2012 Nov;39(11):899.

Hewett PC, Hallett TB, Mensch BS, Dzekedzeke K, Zimba-Tembo S, Garnett GP, Todd PE. Sex with stitches: assessing the resumption of sexual activity during the postcircumcision wound-healing period. AIDS. 2012 Mar 27;26(6):749-56. doi: 10.1097/QAD.0b013e32835097ff.

Hallett TB, Baeten JM, Heffron R, Barnabas R, de Bruyn G, Cremin Í, Delany S, Garnett GP, Gray G, Johnson L, McIntyre J, Rees H, Celum C. Optimal uses of antiretrovirals for prevention in HIV-1 serodiscordant heterosexual couples in South Africa: a modelling study. PLoS Med. 2011 Nov;8(11):e1001123. doi: 10.1371/journal.pmed.1001123. Epub 2011 Nov 15. PMID:22110407.