BBC News article:

Patients in West Yorkshire have become the first in the country to access a new pre-surgery laser treatment, following a successful trial. Mid Yorkshire Teaching NHS Trust has started to roll out Steriwave on those coming in for hip and knee surgery. The treatment involves a probe shining a red light into patients’ nostrils to kill off bacteria which cause surgical site infections.

Read more on BBC News: Nasal laser treatment rolled out in West Yorkshire after trial