A finger-prick test done at home, school, or the GP surgery could identify type 1 diabetes in children years before symptoms appear — preventing the medical emergencies that currently catch families off guard.
Right now, many children go undiagnosed until they develop diabetic ketoacidosis, a life-threatening condition that demands emergency hospital care. A large UK study suggests this doesn't have to happen.
Researchers running the ELSA (Early Surveillance for Autoimmune diabetes) study have screened 17,000 children aged three to 13. The numbers tell a clear story: 160 had early signs of type 1 diabetes without yet needing insulin, 75 showed increased future risk, and 7 had undiagnosed diabetes that required immediate treatment. For those 7 children, the screening caught something that could have turned into a crisis.
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Start Your News DetoxImogen, 12, from the West Midlands, is one of them. When the study found she had diabetes, she started medication to delay the condition's progression. Her mother Amy describes the difference it made: knowing what was coming gave them confidence and peace of mind instead of shock and fear.
The test works by detecting autoantibodies — markers that signal the immune system is attacking the cells that produce insulin. Children without these markers are unlikely to develop type 1 diabetes at all. Those with them can be monitored and treated early, before blood sugar control becomes a crisis.
The next phase, called ELSA 2, will expand screening to children aged 2 to 17. The test is simple enough that it could be rolled out widely — no specialist equipment, no trip to hospital, just a small prick and a result that could change the trajectory of a child's health.
Whether the UK makes this screening routine will be a decision for ministers, advised by the National Screening Committee. But they won't be deciding in a vacuum. Several other countries are already exploring the same question, watching to see whether early detection actually prevents the emergencies and improves outcomes — which the evidence so far suggests it does.
