DAO prepress abstract  -  DOI: https://doi.org/10.3354/dao03207

Pulmonary and systemic fungal infections in an Atlantic spotted dolphin and a Bryde's whale, Brazil

Kátia R Groch*, Josué Díaz-Delgado, Carlos Sacristán, Denyiélim E. Oliveira, Gabriela Souza, Angélica M. Sánchez-Sarmiento, Samira Costa-Silva, Juliana Marigo, Pedro V. Castilho, Marta J. Cremer, Aline Rodrigues Hoffmann, Fernando Esperón, José L. Catão-Dias

*Email: katia.groch@gmail.com

ABSTRACT: We report the gross and microscopic findings and molecular identification of two cases of hyphate fungal infection in cetaceans from Brazil. The first case involved an adult male Atlantic spotted dolphin Stenella frontalis with localized pulmonary disease characterized by pyogranulomatous and necrotizing bronchopneumonia with intralesional hyphae. The second case involved an adult male Bryde's whale Balaenoptera edeni with orchitis, periorchitis, mesenteric lymphadenitis and pyogranulomatous bronchopneumonia with intralesional hyphae. PCR analysis from the dolphin’s lung yielded Aspergillus fumigatus, and from the whale`s mesenteric lymph node yielded greatest identity to Nanniziopsis obscura and Stagonosporopsis cucurbitacearum These cases represent the first reports of pulmonary aspergillosis by A. fumigatus in an Atlantic spotted dolphin and systemic mycosis by a possibly novel Onygenales in marine mammals.