Candida auris: A harbinger of further dangerous fungal species?

Candida auris, a dangerous fungal pathogen, has rapidly spread worldwide in just a few years. Researchers from the University of Würzburg, Carla Schuh and Chaitanya Gokhale, have reviewed 180 studies to understand the reasons behind its sudden emergence and rapid spread. One possible explanation they suggest is climate change, as fungi generally cannot grow at human body temperature (37°C or 98.6°F), but climate change may allow some fungi to adapt to higher temperatures and infect humans.

However, the study does not prove that climate change caused the increased infectivity of Candida auris. The fungus is known for its heat tolerance, ability to survive on surfaces in hospitals for extended periods, and resistance to multiple antifungal drugs. These attributes make Candida auris particularly dangerous for immunocompromised individuals such as hospital patients or nursing home residents.

With a mortality rate of 20%-67%, especially if it enters the bloodstream, Candida auris poses a significant threat to vulnerable patients. The researchers emphasize the need for better surveillance to detect new fungal pathogens early, before major outbreaks occur. This would involve integrating environmental monitoring, climate research, evolutionary biology, and medicine to develop early warning systems and preventive measures.

The review article suggests investing in predictive frameworks to anticipate which species might become problematic in the future, as many closely related species may follow the same trajectory.