• Brit Long, Aaron J Lacy, Alex Koyfman, and Stephen Y Liang.
• SAUSHEC, Emergency Medicine, Brooke Army Medical Center, Fort Sam Houston, TX, United States. Electronic address: Brit.long@yahoo.com.
• Am J Emerg Med. 2024 Oct 1; 84: 162167162-167.

IntroductionCandida auris is an emerging pathogen and human health threat. However, diagnosis and treatment of fungal infection due to C. auris are challenging.ObjectiveThis narrative review provides a focused overview of C. auris for the emergency clinician.DiscussionC. auris was first identified in 2009 and is currently present on all continents except Antarctica. C. auris possesses multiple genetic factors resulting in antimicrobial resistance, increased virulence and survival within the host, and environmental adaptation. It is readily transmitted from person to person and from the environment to a person, resulting in colonization. Infection may develop days to months following colonization, most commonly in those with immunocompromised state, significant comorbidities or other underlying conditions, healthcare exposure, and recent antimicrobial therapy. Candidemia, device infection (e.g., central venous catheter), soft tissue or wound infection, burn infection, osteomyelitis, myocarditis, meningitis, and urinary tract infection have been associated with C. auris. Samples should be obtained from the suspected site of infection for microbiological culture. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) with reference databases to differentiate C. auris from other species is optimal for diagnosis, though other molecular testing methods are available. Treatment is challenging due to antifungal resistance, with over 90% resistant to fluconazole. Echinocandins are most commonly used as the first line therapy. Prevention of colonization and infection are vital and include screening in high-risk populations and strict adherence to infection prevention practices with contact precautions and hand hygiene, as well as appropriate decontamination of patient areas.ConclusionAn understanding of C. auris can assist emergency clinicians in the care of infected or colonized patients.Published by Elsevier Inc.

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