Human T-cell lymphotropic virus (HTLV infection)


The National Centre for Human Retrovirology is a national tertiary referral service for patients infected with human t-lymphotropic virus (HTLV) infections.

We diagnose, treat and monitor all HTLV infections and associated diseases.

For more information about what to expect at your appointment, please visit our HTLV clinic patient information page.


HTLV clinic at the National Centre for Human Retrovirology at St Mary's Hospital
Ground floor 
Winston Churchill Wing 
St Mary's Hospital 
Praed Street 
London W2 1NY 


Monday, Tuesday and Thursday mornings, by appointment only.


GP and secondary care

Referrals should be made by letter to the address above or faxed to 020 3312 6123.

Contact information

HTLV secretary: 020 3312 6604 

HTLV office: 020 3312 1521 


You can self-refer by phoning the HTLV office on 020 3312 1521 or emailing

Additional information

Clinical trials and research

Treatment trials for these rare conditions are sometimes available and will be offered to patients if appropriate. Our clinical research centres around the ways in which these viruses cause disease and how treatment might be improved. This research is conducted through a tissue bank and participation is always voluntary.


General Enquiries
020 3312 1521