Welcome to Pathogen Tracker. You are now a member of the Foodborne Illness Investigators (FBII), a government agency dedicated to investigating dangerous outbreaks of foodborne illness. Using a combination of sophisticated technology and solid detective work, we trace these outbreaks to their source and prevent further contamination of the food supply. Pathogen tracking is a serious task; foodborne illness affects nearly a quarter of the American population each year, with over 1,000 of these cases ending in death.