Shema is a Clinical Research Fellow at UCL’s Institute for Global Health, and Honorary Consultant HIV Physician at Mortimer Market Centre. Her research focuses on women living with HIV, and she has specific expertise in HIV and pregnancy, and patient and public involvement in research.

She is Chair of the British Association of Sexual Health and HIV’s Lay Public Research Panel, and Trustee of Positively UK and Tommy’s Baby Charity. She was Vice-Chair of the British HIV Association’s Pregnancy and HIV Guidelines Committee from 2018-2020.