Research output per year

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Personal profile

Research interests

I am an epidemiologist with particular interests in infectious diseases, vaccines, modelling and health economics.  After completing my BSc (Hons) in Biology at the University of Nottingham in 2003 I spent three years working as an analyst for the Health Protection Agency South West Regional Epidemiology Unit and the South West Public Health Observatory.

In 2007 I joined the Department of Social Medicine (now Population Health Sciences at the Bristol Medical School) as a PhD Fellow funded by an NIHR Researcher Development Award.  My thesis used infectious disease and economic models to predict the potential impact of introducing a new meningococcal vaccine into the UK schedule.   Following this, I worked for 2 years on the TARGET study, an NIHR-funded Programme Grant aiming to improve the quality of care given to children presenting to primary care with respiratory tract infections (RTIs).  I have since held an NIHR post-doctoral fellowship investigating the impact (epidemiological and economic) of meningococcal vaccination schedules, particularly in adolescents and now hold an NIHR Career Development Fellowship investigating how better to assess the impact and offer effective vaccination in older adults. 

I am a member of the NIHR Health Protection Research Unit in Evaluation of Interventions at the University of Bristol.  I am a unit lead for the MSc in Public Health and co-organise a short course on ‘Essentials of Infectious Disease Modelling and Economic Evaluation’. 

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Research Output

Carriage of Neisseria Meningitidis in Low and Middle Income Countries of the Americas and Asia: A Review of the Literature

Serra, L., Presa, J., Christensen, H. & Trotter, C., 2 Apr 2020, In : Infectious diseases and therapy. 32 p.

Research output: Contribution to journalReview article (Academic Journal)

Open Access
  • 28 Downloads (Pure)

    COVID-19 in Older People: A Rapid Clinical Review

    Lithander, F. E., Neumann, S., Tenison, E., Lloyd, K., Welsh, T. J., Rodrigues, J. C. L., Higgins, J. P. T., Scourfield, L., Christensen, H., Haunton, V. J. & Henderson, E., 16 Apr 2020, (Accepted/In press) In : Age and Ageing.

    Research output: Contribution to journalArticle (Academic Journal)

  • Understanding the role of peace of mind in childhood vaccination: A qualitative study with members of the general public.

    Lasseter, G., Al-Janabi, H. J., Trotter, C., Carroll, F. E. & Christensen, H., 28 Feb 2020, In : Vaccine. 38, 10, p. 2424-2432 10 p., JVAC_21550.

    Research output: Contribution to journalArticle (Academic Journal)

    Open Access
  • 44 Downloads (Pure)


    Public Health England External Partnership in Action Award

    Christensen, Hannah (Recipient), 2016

    Prize: Prizes, Medals, Awards and Grants

    University of Bristol Vice-Chancellor’s Impact Award

    Christensen, Hannah (Recipient), 2015

    Prize: Prizes, Medals, Awards and Grants


    • 1 Fellowship awarded competitively

    Supervised Work

    Gene expression of Neisseria meningitidis in the upper respiratory tract

    Author: Tekletsion, Y. K., 28 Nov 2019

    Supervisor: Finn, A. H. R. (Supervisor) & Christensen, H. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (PhD)


    Modelling BCG vaccination in the UK: What is the impact of changing policy?

    Author: Abbott, S., 28 Nov 2019

    Supervisor: Brooks Pollock, E. (Supervisor) & Christensen, H. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (PhD)