Pathogenesis by Jonathan Kennedy is a thoughtful exploration of how infectious diseases have shaped history, using eight plagues as focal points. While the book offers insightful context on the historical and social impact of these epidemics, it focuses more on the events and dynamics surrounding the diseases rather than on the diseases themselves. Kennedy argues that “pathogens thrive on inequality and injustice,” showing how health crises often mirror and amplify societal disparities. While it's a compelling and challenging read that encourages reflection, those looking for deeper scientific detail might feel it falls short.