Dr. Gary Nabel, chief scientific officer, Sanofi Global Research and Development, will present this year’s Chappel Lecture on “Harnessing the Immune System to Fight Emerging Viruses and Cancer.” A reception will follow.

Location: OVC Pathobiology AHL, Room 1800 (reception in OVC Lifetime Learning Centre, Room 1707C, from 4:30 to 5 p.m.)