A major new study has raised alarm about antibiotic resistance in children. The research shows the problem is growing worldwide. Experts warn it will get worse over the next ten years. This situation puts life-saving antibiotics at risk.
The study was led by the University of Sydney. Researchers from the Murdoch Children’s Research Institute, the Clinton Health Access Initiative and the Chinese University of Hong Kong also took part. The findings appear in JAMA Pediatrics.
Dr Yanhong Jessika Hu, a research fellow at the University of Sydney, explained why this matters. She said antibiotic resistance is one of the greatest dangers to children’s health today. Until now, though, scientists lacked a full picture of how the problem was developing.
Antibiotic resistance happens when bacteria change over time. These changes help them survive drugs meant to kill them. Once resistant bacteria spread, infections become much harder to treat. Children face extra risk. They catch bacterial infections often, and doctors have fewer antibiotic choices for young patients than for adults. In 2021 alone, nearly 840,000 deaths in children under five were linked to resistant infections.
What the Researchers Found
The team studied over 106,000 infection samples. These samples came from children up to 18 years old, across 82 countries. Every region showed rising resistance between 2004 and 2022. Newborns, children in intensive care, and kids in countries with weaker healthcare systems were hit hardest.
Associate Professor Penelope Bryant from MCRI pointed to a growing gap. Doctors’ recommended antibiotics are becoming less effective in real life, she said. This makes better disease tracking, smarter antibiotic use, and wider access to effective drugs more urgent than ever.
Resistance grew quickest among antibiotics the World Health Organization has flagged as “last resort” options. These drugs are meant to be used sparingly, so they stay effective when other treatments fail.
Two bacteria stood out as major drivers of the problem. Acinetobacter baumannii, which often causes bloodstream infections and pneumonia in hospitals, showed the highest resistance overall. Klebsiella, linked to urinary tract infections and liver abscesses, showed the fastest rise. This increase was especially sharp in Southeast Asia, Eastern Europe, and the Western Pacific.
A New Tool for Tracking Resistance
The research team built a website called AMR in Kids. It lets doctors, scientists, and policymakers explore resistance data by country, bacteria type, and antibiotic class. The site also offers forecasts through 2035. This helps experts spot new threats early and plan public health responses.
Associate Professor Bryant said children have long been left out of global resistance tracking. Making the problem visible through this new tool, she said, is the first step toward change.
The team is now calling on governments to act. In poorer countries, unregulated antibiotic sales and poor sanitation need urgent attention. These nations also need better diagnostic tools and access to first-line drugs. Australia’s Department of Foreign Affairs and Trade has already begun working with experts from the University of Melbourne and the WHO on solutions for the Western Pacific region.
In wealthier countries, overuse of antibiotics remains a problem across farming, veterinary care, and hospitals. Bryant also called for child-friendly antibiotic formulas, clearer dosing rules, and funding for trials on reducing unnecessary use. She encouraged parents to talk with their doctors about the risks of overprescribing.
A Wider Pattern Emerging
This study isn’t the only recent research raising concerns about hidden drivers of antibiotic resistance. A separate study from the University of South Australia found that common painkillers like ibuprofen and paracetamol may also fuel drug-resistant bacteria, particularly when combined with antibiotics such as ciprofloxacin.
That research, led by Associate Professor Rietie Venter, found that these everyday medicines can trigger bacterial defence mechanisms, raising resistance even to unrelated drug classes. Together, these two studies suggest antibiotic resistance is a more complex issue than previously understood, one shaped not just by antibiotic use itself but also by the wider mix of medicines people, including children and the elderly, take every day. Researchers from both teams agree: closer monitoring and smarter prescribing are now essential.
