Criminal charges may be brought against Scotland's largest health board after a review into a fatal hospital infection showed 'appalling and unacceptable' failures.

The outbreak of C difficile at the Vale of Leven Hospital in Dunbartonshire - which comes under NHS Greater Glasgow and Clyde - infected 55 patients in six months. The infection killed nine people and contributed to the deaths of another nine.

The review found a lack of investment in upgrading and maintenance at the hospital, which has been under threat of closure for 10 years.

It said facilities were "inadequate" for effective patient isolation and infection control and cited poor hand washing facilities, inappropriate spacing between beds and a lack of monitoring of antibiotic use.

The report has been passed to the local procurator fiscal, who will decide whether to bring charges.

NHS Greater Glasgow and Clyde apologised to patients and families.