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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This year's half marathon is well underway. Runners are already making their way through Cardiff Bay.
Conservatives begin their annual conference looking forward to the Assembly election campaign with UK election victory behind them
Thousands of people are taking to the roads of Cardiff to take part in the Cardiff Half Marathon 2015 today.