Invasive Fungal Infections Complicating Lung and Solid Organ Transplantation: Aspergillosis, Cryptococcosis, and Molds

Aspergillus is a filamentous and ubiquitous fungus that can be isolated from soil, plant debris, and indoor air environment. Of the 185 species known to the Aspergillus genus, 20 are implicated as a cause of opportunistic infection in humans. Aspergillus fumigatus is the most commonly isolated species (1-4). Other common species include Aspergillus flavus, Aspergillus terreus, Aspergillus niger, Aspergillus versicolor, and Aspergillus nidulans. Infections with the Aspergillus glaucus group, Aspergillus ustus, Aspergillus oryzae, and Aspergillus sydowi have also been reported (5-19).