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Getting the latest healthcare news for you
Getting the latest healthcare news for you
Some kids keep carrying strep long after treatment — and new research is digging into why. Researchers used whole genome sequencing on Group A Streptococcus samples and found no carrier-specific bacterial genotypes, suggesting the answer lies in the child's immune response or throat microbiome. The next step: comparing throat bacteria in healthy kids vs. those with recurrent infections to predict or prevent long-term carriage.
Strep throat is a common childhood illness — but for 8–10% of kids, the bacteria stick around long after antibiotics clear the symptoms. These asymptomatic carriers feel perfectly healthy yet can spread Group A Streptococcus (GAS) to others for months or even years. Researchers from Binghamton University, the University of Illinois at Chicago, and the University of Wisconsin set out to understand why, publishing their findings in Cell Reports.
Using whole genome sequencing, the team analyzed GAS samples from children treated for strep throat and found no distinct carrier-specific bacterial genotypes. In other words, the bug itself doesn't seem to determine who becomes a carrier — pointing the finger instead at the child's own biology.
Key Takeaways:
Why it matters: Identifying why some children become asymptomatic carriers could reshape how clinicians approach recurrent strep infections — potentially reducing unnecessary tonsillectomies and guiding more targeted treatment strategies.
