Claire Thorne an Associate Professor in Infectious Disease Epidemiology at the University College London Great Ormond Street Institute of Child Health. She read Human Sciences at Oxford University and then studied for a Masters at the London School of Hygiene and Tropical Medicine, followed by a PhD in epidemiology in 1998 at UCL. Claire's research has focused on the epidemiology of viral infections with respect to maternal and child health, with a particular emphasis on HIV, viral hepatitis and zika virus. Claire leads the UK and Ireland National Surveillance of HIV in Pregnancy and Childhood and hepatitis B and C surveillance and cohort studies in the UK and Ukraine, and co-leads the European Pregnancy and Paediatric HIV Cohort Collaboration. Claire is on the Board of the PENTA Foundation, is an Advisory Board member of the International Antiretroviral Pregnancy Registry and serves on technical working groups for WHO and UNICEF.