Sporothrix brasiliensis is the predominant etiological agent of feline sporotrichosis in Brazil, where zoonotic dissemination represents an escalating public health concern. Reports of therapeutic refractoriness and the emergence of itraconazole-resistant isolates underscore the pressing need for alternative antifungal strategies. This study evaluated in vitro antifungal activity of a biogenic silver nanoparticle against 24 Br...