In Memoriam: Mavis Agbandje-McKenna (1963-2021).

On March 3, 2021, we lost an honored member of the virology community, Mavis Agbandje-McKenna, to amyotrophic lateral sclerosis (ALS). Mavis was a leading light in the fields of viral structure, functions, and gene therapy. She was also a treasured friend and collaborator to scientists around the world and an impactful mentor to a multitude of trainees.