Microbial Superhighway The story of infectious disease is not over. In fact, it may be that disease is with us more than ever. And it's partially our own fault. We have created a world ideal for the fostering and spread of infectious disease — an enormous Microbial Superhighway. Visitors gain access to The Microbial Superhighway by walking through an Airplane Door. There they encounter an interactive map of the world.