Prof Katie Ewer

Katie Ewer is an Associate Professor and Senior Immunologist at the Jenner Institute, University of Oxford. The Jenner Institute is an internationally renowned centre for the development of vaccines against a number of diseases affecting low and middle-income countries and diseases with significant global public health impact, such as malaria, flu, HIV, TB and outbreak pathogens.

Katie leads a program of immunology studying vaccine-induced immunity to malaria and emerging pathogens, including Ebola and COVID-19. The vaccine programs have clinical trials at many international partner sites in several LMIC including The Gambia, Senegal, Kenya, Mali, Tanzania and Burkina Faso and her team collaborate with scientists there and across the world.

Katie was educated in the UK and trained as a microbiologist in Oxford. She has a PhD in Immunology, for which she worked on the development of new tools to diagnose tuberculosis. After 4 years at DEFRA (a British government department), she returned to Oxford in 2008 to work at the Jenner Institute to study immune responses to vaccines and determine what types of immune responses protect people from disease.

She is one of the investigators on the UK clinical trials of the Oxford/Astra Zeneca COVID-19 vaccine and her research focuses on studying the T cell responses to the vaccine.