The BBC article seems to overstate the uniqueness of the service at Great Ormond Street Hospital. While it’s true that they are the first in the UK to offer a UKAS-accredited clinical metagenomics service (UKAS being the United Kingdom Accreditation Service, which certifies labs to meet medical testing standards like ISO 15189), metagenomics itself is already being used in several other places across the UK.
For example, the Earlham Institute, the University of Oxford, and the UK Health Security Agency are all actively involved in metagenomics research and surveillance.
For example: https://www.phgfoundation.org/blog/metagenomic-sequencing-in...
https://www.earlham.ac.uk/events/nanopore-metagenomics-sampl...