RaveThe Times (UK)Pathogenesis is superbly written. Kennedy seamlessly weaves together scientific and historical research ... In any bold retelling of history viewed through a single lens, there is a danger of being blinded by one’s theory. This is common to the smart thinking genre: if a writer’s big idea is the peg, you’ll be astonished to discover how every world issue suddenly matches the same shaped hole. Kennedy doesn’t suffer this tunnel vision, although he does sometimes downplay the many factors — including chance — that might be at play in the events he describes.