Advertisement

A potent antibiotic has emerged in the battle against deadly, drug-resistant superbugs

  • Researchers have identified a new antibiotic that appears to kill A. baumannii, or CRAB – a bug that kills roughly half of all patients who acquire it
  • The compound Zosurabalpin has defeated strains of pneumonia and sepsis in mice, raising hopes for human trials

Reading Time:4 minutes
Why you can trust SCMP
Researchers have identified a new antibiotic that appears to effectively kill A. baumannii. Photo: Shutterstock Images

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.

Advertisement

Identified as a top-priority pathogen by both the World Health Organization and the US Centres 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 hospitalised patients who are already sick with blood infections or pneumonia.

In the United States alone, the bug sickens thousands and kills hundreds every year.

Acinetobacter baumannii, seen under a scanning electron microscope, is a Gram-negative bacterium responsible for thousands of hospitalisations and hundreds of deaths in the US alone each year. An experimental antibiotic has been found to disable it in mice. Photo: Centers for Disease Control and Prevention/TNS
Acinetobacter baumannii, seen under a scanning electron microscope, is a Gram-negative bacterium responsible for thousands of hospitalisations and hundreds of deaths in the US alone each year. An experimental antibiotic has been found to disable it in mice. Photo: Centers for Disease Control and Prevention/TNS

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 scientific approach is brilliant’

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.

loading
Advertisement