“…Worldwide estimates indicate that over 1.8 million cases of invasive fungal infections occurred in 2017, including around 250,000 cases of invasive aspergillosis (IA) 1 . Mould‐active prophylaxis has shown some success in reducing IA in patients with traditional risk factors for IA, such as those with underlying haematological malignancy and prolonged neutropenia, although breakthrough infections may occur 2–7 . In contrast, the prevalence of IA continues to increase in non‐neutropenic patients with severe underlying diseases, including those in intensive care units, 8–12 those with severe viral infections caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) or influenza virus, 12–16 solid organ transplant recipients, 17 those receiving systemic glucocorticoids, 18 those with solid cancers, 8,19 those with chronic obstructive pulmonary disorder (COPD) and other chronic respiratory disorders, and those who have received ibrutinib 8,20–22 .…”