John Llewelyn Hopper 20 May 1950–28 October 2024

The scientific world has mourned the loss of Professor John L. Hopper, AM, an outstanding biostatistician/epidemiologist who died after collapsing unexpectedly at a scientific meeting attended by Australian and international colleagues.He is remembered as a warm friend and colleague, honoured for his vision, his scientific achievements and his productivity.His leadership and seminal research transformed our understanding of how g enes and environment interact to influence human health and disease, effectively establishing the discipline of g enetic epidemiology in Australia.