Under a microscope, this drug-resistant superbug looks as benign as a handful of pebbles. Yet carbapenem-resistant Acinetobacter baumannii , or CRAB, is a nightmare for hospitals worldwide, as it kills roughly half of all patients who acquire it.

Identified as a top-priority pathogen by both the World Health Organization and the U.S. Centers for Disease Control and Prevention, CRAB is the most common form of a group of bacteria that are resistant to nearly all available antibiotics. Victims are typically hospitalized patients who are already sick with blood infections or pneumonia. In the U.S. alone , the bug sickens thousands and kills hundreds every year.

But 2024 is starting with some encouraging news on the global health front: For the first time in half a century, researchers have identified a new antibiotic that appears to effectively kill A. baumannii.

The compound, zosurabalpin, attacks bacteria from a novel angle, disrupting the route that a key toxin takes on its journey from inside the bacterial cell to the outer membrane that shields the bug from the immune system’s defensive onslaughts.
Under a microscope, this drug-resistant superbug looks as benign as a handful of pebbles. Yet carbapenem-resistant Acinetobacter baumannii , or CRAB, is a nightmare for hospitals worldwide, as it kills roughly half of all patients who acquire it. Identified as a top-priority pathogen by both the World Health Organization and the U.S. Centers for Disease Control and Prevention, CRAB is the most common form of a group of bacteria that are resistant to nearly all available antibiotics. Victims are typically hospitalized patients who are already sick with blood infections or pneumonia. In the U.S. alone , the bug sickens thousands and kills hundreds every year. But 2024 is starting with some encouraging news on the global health front: For the first time in half a century, researchers have identified a new antibiotic that appears to effectively kill A. baumannii. The compound, zosurabalpin, attacks bacteria from a novel angle, disrupting the route that a key toxin takes on its journey from inside the bacterial cell to the outer membrane that shields the bug from the immune system’s defensive onslaughts.
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