Dr Maheshi Ramasamy obtained her medical degree at Christ's College, University of Cambridge. She trained in Infectious Diseases and General Internal Medicine and obtained a DPhil at Wadham College, University of Oxford investigating B cell responses to conjugate and polysaccharide meningococcal vaccines.

As a Principal Investigator at the Oxford Vaccine Group, she leads on adult clinical vaccine trials and her research interest is in adaptive immune responses to vaccines.

She is a Consultant Physician at the Oxford University Hospitals NHS Foundation Trust and is an Honorary Senior Clinical Lecturer at the University of Oxford.