An ordinary day Seattle is stunned when a deadly bacteria tears through a nearby Bible camp. Early tests reveal it is a form of meningitis, and the camp's residents are among its most vulnerable victims: children and teenagers.A new vaccine Seattle's chief public health officer, Lisa Dyer, and her team quickly take steps to contain the outbreak. When testing reveals the strain is one that caused catastrophic losses in Iceland just months earlier, she contacts a pharmaceutical company doing final-phase trials on a viable vaccine and asks them to release it early.An epidemic in the making Despite protests, vaccine clinics roll out across the city, and the risky strategy appears to be working. Until people start dying from mysterious and horrific causes . . .Praise for Daniel Kalla ';A thrilling, front-line drama'Kathy Reichs ';Kalla strikes again with another perfect page-turner'Lee Child ';A superbly written suspense novel . . . masterful'Steven Hartov ';Fast, fierce and frightening. Kalla delivers a shot of adrenaline in a medical thriller that really thrills'Don Winslow ';This important, must-read book is not only well-researched and entirely realistic, it gives a human face to a devastating epidemic'Robyn Harding ';Fast-paced and smartly written . . . a force to be reckoned with'Booklist