Coccidioidomycosis, a fungal lung disease traditionally found in desert regions of Mexico and the southwestern United States, is spreading to new areas where it was never seen before. Researchers tracked 122 cases between 1991 and 2023 and found that nearly half of the patients had no history of travel to known high-risk areas, suggesting the disease is becoming established in new locations. Climate change and drought conditions are likely helping the fungus expand its range, making it important for doctors everywhere to consider this disease when diagnosing respiratory infections.