Aspergillus flavus (fungus) Ecology & Pathogenicity; Found worldwide. Ubiquitous in nature and is the second most common cause of invasive aspergillosis next to Aspergillus fumigatus. Has been implicated in pulmonary, systemic, sinus, ear and other infections. Most widely reported food-borne fungus and can be found colonizing decaying vegetation, crops and seeds. Has also been implicated as both an insect and animal pathogen. (For a slightly more expanded description of pathogenicity, see...