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Candida auris is not simply another name for a routine yeast infection. It can spread in healthcare settings, may be difficult to identify accurately, and is often resistant to antifungal medicines. It can also be present on a person without causing symptoms. Other Candida infections range from localized oral or vaginal disease to serious invasive infection, so the symptoms and treatment depend on where the yeast is and whether it is causing illness.
Symptoms alone cannot tell C. auris from another Candida species—or reliably distinguish Candida from other infections. Diagnosis and treatment require clinical assessment and appropriate laboratory testing.
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How Candida auris differs from other Candida infections
Candida is a group of yeasts. Different species can cause different illnesses: some produce localized infections of the mouth or vagina, while others can enter the blood or another normally sterile part of the body and cause invasive candidiasis. C. auris can cause invasive disease too, but it draws particular concern because it can spread between patients and through contaminated surfaces or shared equipment in healthcare settings, and it is frequently resistant to antifungals.
| Comparison | Candida auris | Other Candida infections |
|---|---|---|
| Typical clinical range | Colonization without symptoms or infection, including bloodstream, wound, ear, and other infections | Localized mucosal infections, such as oral or vaginal candidiasis, as well as invasive disease |
| Spread and setting | Notable for spread among patients and persistence on healthcare surfaces and equipment | Mucosal overgrowth may involve Candida already living on or in the body; invasive candidiasis is also associated with serious illness and healthcare exposures |
| Symptoms | Depend on infection site and severity; no symptom pattern uniquely identifies the species | Depend on the species and site; localized symptoms differ from those of invasive disease |
| Identification | Accurate laboratory identification matters because some traditional yeast-identification methods can misidentify it | Testing is selected for the suspected infection site and clinical question |
| Treatment approach | For clinical infection, CDC recommends an echinocandin as initial treatment for most patients older than two months; resistance may complicate care | Depends on the species, infection site, severity, susceptibility, and the person’s clinical condition |
These are broad distinctions, not a way to identify the organism in an individual case. CDC guidance and testing should be interpreted by a healthcare professional.
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What symptoms can Candida auris cause?
There is no common set of symptoms specific to C. auris. A person with an infection may have fever or chills, but symptoms depend on the part of the body involved and how severe the illness is. Bloodstream and other invasive infections can cause nonspecific symptoms that also occur with bacterial infections and other Candida infections. Wound, ear, or other infections can look different.
By contrast, vaginal candidiasis more often causes itching, soreness, and discharge. Oral candidiasis affects the mouth, while esophageal candidiasis involves the esophagus and has different local effects. These examples are not interchangeable: a symptom associated with one site does not establish what is causing symptoms at another site.
Vaginal symptoms in particular overlap with other conditions. An exam or testing may be needed to identify the cause and choose appropriate treatment. Do not use symptoms alone to conclude that an infection is C. auris, another Candida species, or a bacterial infection.
Can Candida auris be present without symptoms?
Yes. Colonization means C. auris is present on the body without causing signs or symptoms of infection. A positive result from a screening swab or a noninvasive site does not by itself mean that a person has a clinical infection requiring antifungal treatment.
Colonization still matters in healthcare because a colonized patient can spread the yeast to other patients or to surfaces and equipment. CDC says it does not recommend treating C. auris in a patient without signs or symptoms of infection, including when it is found at a noninvasive site such as the respiratory tract or urine.
Who is most at risk, and how does it spread?
Risk for Candida auris
C. auris is chiefly a concern for people who are severely ill or receive complex, prolonged healthcare. Risk factors include invasive devices such as ventilators, central lines, or urinary catheters; frequent or extended stays in healthcare facilities; and recent antimicrobial exposure. Healthy people without these factors are generally not considered at risk in the same way.
Risk for other Candida infections
Risk depends on the type of candidiasis. Mucosal infection can develop when conditions allow Candida already living on or in the body to overgrow. Invasive candidiasis is also concentrated among seriously ill or hospitalized patients. CDC lists factors that can include prolonged intensive-care stays, central venous catheters, broad-spectrum antibiotics, surgery, chemotherapy, and parenteral nutrition.
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Healthcare spread
C. auris can pass from a patient to surfaces or shared equipment and then to another patient. Healthcare facilities use infection-control practices and thorough cleaning and disinfection to reduce that spread. This healthcare transmission pattern is an important distinction from localized mucosal candidiasis.
CDC’s 2026 surveillance report counted 6,304 reported U.S. clinical cases of C. auris in 2024. That figure is a count of reported clinical cases in the United States for that year—not a measure of worldwide prevalence, an individual’s probability of infection, or the number of people colonized.
How is Candida auris diagnosed?
A clinician cannot identify C. auris by appearance or symptoms alone. The CDC’s February 26, 2026, clinical overview notes that traditional biochemical yeast-identification methods can misidentify it; accurate identification requires methods such as sequencing or mass spectrometry. Identification is important because the species can affect infection-control decisions and treatment choices.
Testing depends on the question being asked:
- Suspected infection: A clinical specimen is collected from the affected site. Blood cultures are commonly used when invasive candidiasis is suspected.
- Possible colonization: Healthcare facilities may use skin-swab screening to identify people carrying C. auris and guide infection-prevention measures.
A screening result and a specimen collected to diagnose an infection answer different questions. The test result must be considered alongside symptoms, the site sampled, and the person’s clinical condition.
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Clinical Candida auris infection
CDC recommends an echinocandin as initial treatment for most adults and children older than two months with clinical C. auris infection. Its guidance has a different initial recommendation for infants younger than two months, so age-specific treatment requires a clinician. Treatment decisions also depend on patient characteristics, response to therapy, and antifungal susceptibility testing.
Some C. auris strains resist multiple antifungal classes. If testing shows resistance, or the infection does not respond, alternative treatment decisions should be made with infectious-disease expertise because evidence for those cases is limited. These are clinician-directed treatments, not self-treatment options.
Other Candida infections
For invasive candidiasis caused by other species, treatment still depends on the species, site, severity, susceptibility, and overall clinical condition. The Infectious Diseases Society of America (IDSA) 2016 guideline describes echinocandins as common initial therapy for candidemia, with selected alternatives. CDC’s C. auris-specific guidance is the more relevant reference when that species is identified.
Localized mucosal infections follow different clinical regimens from invasive disease. Over-the-counter vaginal yeast treatments are not treatment for invasive candidiasis or C. auris infection, and a suspected infection should not be treated on the assumption that all Candida illnesses are alike.
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Seek prompt medical care for a suspected serious infection, particularly if you are seriously ill, hospitalized, have an invasive medical device, or are receiving complex healthcare. If a test has identified C. auris, ask the treating team whether the result indicates colonization or clinical infection and what laboratory identification and susceptibility testing show. Do not start, stop, or choose antifungal treatment based on this comparison.
This article provides general information, not a diagnosis or a treatment plan. CDC recommendations cited here are U.S. guidance; treatment policies may differ by jurisdiction. Antifungal resistance and surveillance figures can change, and the IDSA guideline cited for general candidiasis treatment dates to 2016.
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