First report of Sporothrix brasiliensis in a Southern Giant Petrel (Macronectes giganteus): Implications for One Health.

BACKGROUND

Sporothrix brasiliensis is an emerging fungal pathogen whose environmental reservoirs remain unclear. There are hypothesized reservoirs involving seabirds.

CASE REPORT: We report the first detection of S. brasiliensis in a Macronectes giganteus specimen rescued in southern Brazil. The fungus was isolated from the cloaca and identified by polymerase chain reaction (PCR) and sequencing. Short tandem repeat (STR) genotyping revealed a distinct profile of the isolate compared to previously described strains. The results revealed that the isolate possessed a wild-type susceptibility profile to amphotericin B and itraconazole, and a non-wild-type susceptibility profile to terbinafine.

CONCLUSIONS

Findings suggest that migratory seabirds and marine environments may influence S. brasiliensis dissemination, underscoring the need for broader One Health surveillance at a global level.