"NEW YORK — A first-of-its-kind U.S. study suggests invasive mold infections may be an underappreciated — and potentially deadly — threat.

The researchers detected about 450 cases in Atlanta-area hospitals over five years. About a third of the patients died in the hospital.

The findings, published this week by the U.S. Centers for Disease Control and Prevention, come from an attempt to better gauge how common these kinds of illnesses are. The government does not require doctors to report the illnesses.

“It’s kind of the first time we’ve had an estimate like this,” said the CDC’s Dr. Jeremy Gold, the study’s senior author.

And it’s important to understand it now, because the problem may grow in the future, he added. Mold exposure is a recurring problem in the wake of hurricanes, floods and other natural disasters influenced by climate change, researchers have found."

Mike Stobbe reports for the Associated Press July 29, 2026. [2]