Dr. Fisher is a physician-scientist whose research program focuses on mucus production and associated oxidative stress in CF. His laboratory understands mucus obstruction of both the airways and the digestive tract and how bacteria, especially Staphylococcus aureus exploit this problem. His recent publications have demonstrated a potential role for pancreatic enzymes in relieving meconium ileus. They are also investigating whether some Staphylococcus aureus genotypes increase the risk of CF-related diabetes mellitus.