You can read more about the study from the University of Oxford Press Release, available here: http://www.ox.ac.uk/news/
The original research paper is available via the Lancet Infectious Diseases:
Whole-genome sequencing to determine transmission of Neisseria gonorrhoeae: an observational study
(note: a subscription is required for full access to these articles)
This work was supported by the National Institute of Health Research Health Protection Research Unit and Oxford Biomedical Research Centre.