Effective treatments of the symptoms of autism have long eluded researchers. But studies on bacteria in the human gut in recent years have yielded new knowledge about autism and led to development of a fecal transplant treatment that has shown promise in alleviating some debilitating effects of the developmental disorder. Fulton Schools Professors James Adams and Rosa Krajmalnik-Brown are among engineers and scientists who have contributed to detailed analysis of the human gut microbiome of autism patients and conducted trials that raise hope for deeper discoveries about the causes of autism and how to improve the lives of people afflicted by it.