Concurrent yellow fever and pulmonary aspergillosis due to Aspergillus fumigatus in a free-ranging howler monkey (Alouatta sp).

Herein, we describe a unique case of concomitant angioinvasive pulmonary aspergillosis due to Aspergillus fumigatus and yellow fever in a free-ranging howler monkey (Alouatta sp). Lung samples were negative for influenza viruses A and B.