Abstract
This study documents the first reported cases of Candida (Candidozyma)auris in the Dominican Republic, isolated from both a critically ill human patient and a captive dolphin. Antifungal susceptibility testing from dolphin isolate showed elevated minimum inhibitory concentrations (MIC) of fluconazole but low MICs of other antifungals, including the novel drugs rezafungin, ibrexafungerp and manogepix. Whole genome sequencing (WGS) of the dolphin isolate allocated it to clade I, but surprisingly did not show any known mutations that confer azole resistance, suggesting a mechanism different from mutations in the genes studied. The concurrent emergence of C. auris in human and animal hosts underscores the importance of a One Health approach, emphasizing the interconnectedness of human, animal, and environmental health, and the need for strengthened surveillance and rigorous infection control measures across medical and veterinary settings.