Sporotrichosis: An Update on Epidemiology and In Vitro Antifungal Susceptibilities of Sporothrix schenckii Isolated From Humans and Cats in Klang Valley, Malaysia
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Abstract
The epidemiological pattern of human sporotrichosis infections in Klang Valley, Malaysia and antifungal susceptibility of the causative fungal pathogen, Sporothrix schenckii was determined. A total of 67 culture positive sporotrichosis cases were recorded from 2015-2018 at three Klang Valley hospitals, with a majority in the 19-30 years age group. Association with felines represent the highest (47.76%) risk factor for sporotrichosis. The clinical presentation was predominantly lymphocutaneous infection (59.67%). S. schenckii isolates from humans and cats were tested for antifungal susceptibility using the standardized broth microdilution method. All 25 S. schenckii isolates tested were susceptible to itraconazole (MIC 0.5-2 µg/mL), while MIC was lower for ravuconazole (0.125-1 µg/ mL). Awareness and emphasis on feline associated sporotrichosis are needed in Malaysia. While itraconazole is the recommended treatment, ravuconazole may be an additional, potentially effective treatment against S. schenckii.
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