A new study published in Antimicrobial Resistance & Infection Control has shown that Candida auris does not develop resistance to hydrogen peroxide, even after repeated exposure.
The results show that hydrogen peroxide was effective against C. auris even at concentrations well below those used in hospital disinfectants.1 There was also no development of resistance to disinfection, even when C. auris colonies were exposed repeatedly to hydrogen peroxide over 30 days. Hydrogen peroxide was shown to be equally as effective against C. auris as it was against other Candida species, including C. albicans. The authors describe the results as good news, given the extensive use of hydrogen peroxide as a disinfectant in healthcare scenarios.
C. auris is an emerging fungal pathogen that is often multidrug-resistant and is difficult to eliminate with some common disinfectants.2 The fungus spreads rapidly in healthcare settings through contact with contaminated surfaces or medical devices.2 The number of cases of C. auris in the United States has been growing each year since 2019, with 2,377 cases reported in 2022.3,4
Up until now, there has been limited published data on the effectiveness of some disinfectants against C. auris, despite the Centers for Disease Control and Prevention(CDC) calling for improved infection control practices to address the spread of C. auris.
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