Imperial College London


Faculty of Natural SciencesDepartment of Mathematics








Huxley BuildingSouth Kensington Campus





I am a Postdoc working with the HIV Transmission Elimination Team at the Amsterdam Institute of Global Health and Development. My research involves using viral sequence data and patient data to characterise HIV transmission and monitor the effectiveness of interventions at city-level. My research interests include phylogenetics, mathematical modelling and Bayesian methods.

I am also involved in research relating to COVID-19, with a focus on children losing parents and caregivers and disparities across the US.



Unwin HJ, Hillis S, Cluver L, et al., 2022, More than 5.2 million children affected by global surges in COVID-associated orphanhood and caregiver death: new evidence for national responses, The Lancet Child & Adolescent Health, ISSN:2352-4642

Hillis S, Blenkinsop A, Villaveces A, et al., 2021, COVID-19-associated orphanhood and caregiver death in the United States, Pediatrics, Vol:148, ISSN:0031-4005, Pages:1-13

Brizzi A, Whittaker C, Servo LMS, et al., 2021, Report 46: Factors driving extensive spatial and temporal fluctuations in COVID-19 fatality rates in Brazilian hospitals., Medrxiv

Bezemer D, Blenkinsop A, Hall M, et al., 2021, Many but small HIV-1 non-B transmission chains in the Netherlands, Aids, Vol:36, ISSN:0269-9370, Pages:83-94

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