Researchers at Cardiff University say preventing a form of diabetes could become a reality, if trials prove successful.
It aims to slow - or stop - the destruction of insulin-making cells using a vaccine-type treatment.
In the UK, Type 1 diabetes is on the increase.
David Wood reports.
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Breezy with further showers, locally heavy, spreading in from the west at times.
Breezy, but winds gradually easing overnight. There will be clear spells and isolated showers through the evening.
Calls are being made for a report into allegations over the care of dementia patients at a north Wales hospital to be published.