In August 2012, 14-year-old Joshua Osborn went for a freshwater swim while visiting Puerto Rico. That memorable summer outing led to a life-threatening brain infection that stumped his doctors. A new DNA sequencing technology saved his life. After returning home to Wisconsin, Joshua started getting headaches and fevers. Eventually, these symptoms escalated, leading to uncontrollable seizures. A battery of tests failed to reveal the cause of his illness, so Joshua was put in a medically induced coma to buy time.