Driven by a pandemic completely unprecedented in most of our lifetimes-a virus that has killed our neighbors, our friends, our families-we are witnesses to a massive international effort to create COVID-19 vaccines and get jabs in arms. The vaccines were developed in record time, but they came from a long history of experimentation and work. "JAB: THE 250 YEAR JOURNEY TO THE COVID-19 VACCINE" travels back in time to the mysterious first inoculators and draws a straight line to the research, methods, and people behind today's vaccines.