Drug-resistant ringworm fungus has spread to 29 countries: Study

The rise of drug-resistant ringworm is a quiet but telling symptom of a larger problem: the overuse and misuse of antifungal medications, both in human medicine and agriculture. While headlines often focus on antibiotic resistance in bacteria, fungi are equally capable of evolving defenses against our treatments. This study’s finding that cases have tripled in a short period should serve as a wake-up call that we are losing ground in a different microbial arms race. What makes this particular strain so concerning is its ability to evade standard therapies like terbinafine, often leaving patients with persistent, uncomfortable infections. Unlike many hospital-acquired resistant infections, this one spreads in community settings—through skin-to-skin contact, shared towels, or even contaminated surfaces. That means it doesn’t stay confined to vulnerable patients; it can move through schools, gyms, and households with ease. The global scope of the spread—29 countries—also underscores how connected we are. A resistant strain that emerges in one region can quickly appear on another continent via a single traveler. Yet surveillance systems for fungal infections remain far less developed than those for bacteria or viruses. We are often reacting after the fact, rather than tracking these pathogens in real time. There is also a policy dimension here. The agricultural use of antifungal agents, particularly azoles, is known to drive resistance in environmental fungi, which can then jump to humans. Balancing food production needs with public health stewardship is a delicate but necessary conversation. Without stronger regulation and investment in novel antifungals, we may find ourselves with fewer and fewer effective options. Still, there is reason for measured optimism. The medical community is increasingly aware of this threat, and researchers are exploring new classes of drugs and combination therapies. Public health agencies are beginning to issue guidance on identifying and treating resistant ringworm. But awareness alone is not enough—it must be paired with funding, international cooperation, and a commitment to using existing antifungals more judiciously. Source: [The Hill](https://thehill.com/policy/healthcare/6073872-drug-resistant-ringworm-fungus-spreading-cdc-study/)