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Pathogen Genomics Unit (PenGU)

A UKAS accredited medical laboratory No 9510

Pathogen Genomics Unit Cardiff

Public Health Wales Microbiology Cardiff

1st Floor C Block

University Hospital of Wales


CF14 4XW


Telephone: 02920 742046 (for results, consultation & advice during office hours 09:00-17:00 Mon-Fri)

Fax: 02920 746403



Laboratory Hours:

07:30 – 17:00 (Monday - Friday)


DX Address

Cardiff Public Health Wales Cardiff

DX 6070100

Cardiff 90 CF

Referral Form


Core reference services & guide to investigations

ISO 15189 Accredited Tests 


Samples Required ISO 15189 Accredited Tests Performed

Turnaround Time
(depends on complexity and current workload)

HIV Resistance 10ml of EDTA Blood or 3ml of Plasma samples referred via Microbiology Departments Targeted  Sequencing 14 working days
Characterisation of Mycobacteria Extracts referred by WCM only Whole Genome Sequencing
10 working days
Results obtained from WCM
Characterisation of C.difficile  Extracts referred by ARU only  Whole Genome Sequencing 

7 working days 

Results obtained from ARU 

Other Tests Performed 

Investigation Samples Required Tests Performed

Turnaround Time
(depends on complexity and current workload) 

Characterisation of Antibiotic Resistant Bacteria  Extracts referred by SACU only Whole Genome Sequencing 

R&D Only  

Results obtained from SACU 

Typing of Influenza, SARS CoV2 and for epidemiological purposes and for the investigation of clusters / outbreaks

Specimens referred from Specialist Virology Unit and Microbiology Network with prior arrangement
Whole Genome Sequencing 5-7 working days

How to obtain services

Use the HIV Resistance form:  Form 1: Referral form-submission of clinical samples for HIV Resistance  

Samples should be sent in packaging appropriate to current legislation, accompanied by a referral form (available to download below) detailing putative diagnosis, patient or sample details and relevant (clinical) history.

For all other services please contact appropriate Reference Unit.

Referral Form

PenGU Referral Form: HIV Resistance 

For all other services please contact appropriate Reference Unit.


Clinical Lead for HIV resistance and Mycobacteria
Consultant Medical Microbiologist: Dr Matthijs Backx
Pathogen Genomics Laboratory Team
Clinical Scientist and Head of Unit: Dr Sally Corden
Senior Biomedical Scientist Deputy Head: Joanne Watkins
Senior Biomedical Scientist: Bree Gatica-Wilcox
Specialist Biomedical Scientists:   Alec Birchley & Sara Kumziene-Summerhayes
Healthcare Scientists:  Jason Coombes, Lee Graham, Sarah Taylor, Harry Williams, Taylor Jones, Rebeca Evans, Clare Brown & Alex Adams
Associate Practitioners: Lauren Gilbert, Aaron Sheehan, Daniel Fenton
Pathogen Genomics Bioinformatics Team 
Consultant Bioinformatician: Prof Thomas Connor
Senior Bioinformaticians: Dr Sara Rey, Dr Catryn Williams
Bioinformaticians: Dr Dyfed Evans, Amy Gaskin, Andrew Beazer, Dr Jonathan Jenkins, Milly Roberts  

Related Links 

Public Health Wales Microbiology Services 

Wales Centre for Mycobacteria (WCM) 

UK Anaerobe Reference Unit (UKARU) 

Specialist Antimicrobial Chemotherapy Unit (SACU) 

Wales Specialist Virology Centre (WSVU)