A 13-year-old bottlenose dolphin at a Japanese aquarium developed a stomach infection caused by Prototheca bovis, a type of alga rarely found in marine animals. The dolphin initially received treatment with itraconazole for a suspected fungal infection, but this was ineffective. When doctors identified the actual culprit as P. bovis through genetic testing, they switched to fos-ravuconazole, which successfully resolved the infection and returned the dolphin to good health.