Generalized aspergillosis in an infant 18 days of age.

Imperfecti (asexual reproduction) and is of the filamentous type. Of the more than 350 speciesidentified, only two are thought to possess pathogenic potentialities in humans, namely A. fumigatus and A. niger. Aspergillus fumigatus was the only organ ism cultured from or seen in widespread lesions found at post-mortem examination in an infant who died at the age of 18 days and is the subject of this report.