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.
More top news
The Wales Rugby squad are currently in Switzerland at a gruelling conditioning training camp ahead of the World Cup in September.
Wales joined the rest of Britain today in falling silent to remember those who were killed in the July the 7th bombings.
Prince Charles and the Duchess of Cornwall helped flip a few Welsh cakes as they continue their summer tour of Wales.