Every year more than one million Americans develop sepsis—a life-threatening medical condition that arises when the body initiates a powerful immune response against an infection. Anyone can get sepsis, but two-thirds of all cases occur in people over the age of 65.  Around 40 percent of patients who get sepsis don’t survive—making it the 10th leading cause of death in the United States. The key to fighting this dangerous condition is recognizing it early and treating it quickly.