Microscopic yeast have been wreaking havoc in hospitals around the world — creeping into catheters, ventilator tubes, and IV lines — and causing deadly invasive infection. One culprit species, Candida auris, is resistant to many antifungals, meaning once a person is infected, there are limited treatment options. But researchers have now confirmed a new drug compound kills drug-resistant C. auris, both in the laboratory and in a mouse model that mimics human infection.