Candida auris evades immune system by hiding in hair follicles, study finds

Fungus Found in Hair Follicles

Scientists have discovered that Candida auris, the drug-resistant fungus responsible for severe hospital outbreaks, can evade the body's defenses by hiding inside hair follicles. The pathogen rewires the local skin immune response, essentially switching off alarm signals that would normally trigger an attack.

The study, published in a leading medical journal, reveals a previously unknown survival tactic. By colonizing hair follicles, the fungus creates a protected niche where it can persist undetected, even as the immune system works to clear it from the skin surface.

How the Fungus Dodges Immunity

The researchers found that Candida auris manipulates the expression of key immune genes in skin cells. It dampens the production of inflammatory molecules, preventing immune cells from being recruited to the site of infection. At the same time, it promotes a tolerant environment that allows the fungus to multiply.

This immune rewiring is not just passive — the fungus actively changes how skin cells communicate. The result is a "stealth mode" that makes the pathogen particularly difficult to eliminate, especially in patients with weakened immunity.

Spreading Across the US

The discovery comes as US health authorities grapple with a surge in Candida auris cases. More than 3,400 infections have been reported across 27 states, according to CDC data. Texas leads the country in case numbers, a trend that has alarmed infectious disease specialists.

Unlike many hospital-acquired infections, Candida auris is often resistant to multiple antifungal drugs. It spreads easily in healthcare settings, surviving on surfaces and equipment. Patients with invasive infections face mortality rates that can exceed 30 percent.

Why This Finding Matters

Until now, most research focused on how the fungus colonizes the skin surface. The new study shifts attention to deeper tissue, explaining why standard disinfection and topical treatments often fail. It may also clarify why some patients carry the fungus for months without obvious symptoms.

Health officials have emphasized that the fungus is not a threat to healthy individuals, but it poses a serious risk to hospital patients, especially those with catheters, ventilators, or long stays in intensive care. The CDC has urged healthcare facilities to strengthen screening and isolation protocols.

What This Means for Treatment

The findings open new avenues for therapy. If scientists can identify the precise immune pathways that Candida auris hijacks, they may be able to develop drugs that restore the skin's natural defenses. Clinical trials, however, are likely years away.

In the meantime, hospitals are advised to use rigorous cleaning measures and to test high-risk patients. Researchers also caution that hair follicles may protect the fungus from common antiseptics, meaning current protocols may need to be revised.

The study's authors say more work is needed to understand how the fungus behaves in different parts of the body, including the groin and armpits, where hair follicles are abundant. They are also investigating whether the same immune evasion occurs in other fungal species.

As the number of cases continues to rise, the need for effective countermeasures grows more urgent. Public health agencies are monitoring the situation closely, and new guidelines on infection control are expected in the coming months.