Catherine has led on the development of key HIV policy and planning frameworks and a national HIV prevention needs assessment of Africans in England. Catherine is recognised internationally for her research and policy experience relating to criminal prosecutions for HIV transmission, and she continues to influence colleagues who deliver services and devise HIV policy in the UK and elsewhere. She is currently interested in work that undertakes a critique of the impact of the biomedicalisation of HIV on policy development and lived experience for those closest to the epidemic.