The Information Standard is a quality mark run by NHS England. The Information Standard quality mark demonstrates our commitment to trustworthy health and care information.

It can also reassure you of the quality of our internal information production processes. These ensure that our health and care content is evidence-based and appropriate for the needs of our audiences.

Terrence Higgins Trust is a certified member of the standard and is listed on NHS England’s web page of certified organisations.

On occasion, pages may be developed with the generous support of external funders. The content of the pages will remain strictly independent and subject to our information production process.

Statement of responsibility


Terrence Higgins Trust shall hold responsibility for the accuracy of the information they publish and NHS England have no responsibility whatsoever for costs, losses or direct or indirect damages or costs arising from inaccuracy of information or omissions in information published on the website on behalf of Terrence Higgins Trust.

The Information Standard certification does not apply to content in our community forums, weblogs or personal experience pages, except where personal experience pages have been produced through a systematic process of validation. It also does not apply to comments on any website page, even if the page content itself is certified.



If you have any questions or comments about the information on this website or would like information on the evidence used to produce it, please email [email protected].

The information included on this website was correct at the time of publication. We plan to review each page within three years of its publication.

More information


For more information on The Information Standard, visit the NHS England website.