Guardant Health has appointed Bahija Jallal to its board of directors, effective April 17. Jallal has served as the CEO of Immunocore Limited, a T cell receptor biotechnology company, since January 2019. Prior to that she served as executive VP of AstraZeneca and was president of MedImmune, a subsidiary of AstraZeneca, after holding various other research and development positions at the firm. Jallal is a member of the board of trustees at Johns Hopkins University and of UMB Health Sciences Research Park. She has also served as a past president of the Association for Women in Science.