Hope for SWAN children with undiagnosed genetic conditions

They are known as SWANs and every year 6,000 are born across the country.

They have what is called a syndrome without a name - children born with a developmental disorder, but less than half are diagnosed.

It is hoped new technology developed in Cambridge could dramatically increase that rate of diagnosis and with funding from a local investment company it could be rolled out across the NHS by next summer.

Anna Todd reports.

BBC News