Fungal Disease Awareness Week is October 1–5, 2018. CDC and partners have organized this week to highlight the importance of recognizing serious fungal diseases early enough in the course of a patient’s illness to provide life-saving treatment. Some fungal diseases go undiagnosed and cause serious infections in people in the United States and around the world, leading to illness and death. Increased awareness about fungal diseases is one of the most important ways we can improve early recognition and reduce delays in diagnosis and treatment. A key clue to when a sick person may have a fungal infection is that he or she is being treated with medications for other types of infection but does not get better.