Human immunodeficiency virus (HIV) is a virus which attacks the immune system. HIV is a chronic, lifelong infection which can be managed successfully by antiretroviral therapy (ART). There's no vaccine or cure for HIV but the current treatment, taking daily tablets, stops the virus from replicating and damaging the body’s immune system. Progression to advanced HIV disease or acquired immune deficiency syndrome (AIDS), which is defined by a number of clinical conditions, can be controlled by good adherence to ART. People diagnosed with HIV and on ART are able to live long and healthy lives. The availability of effective treatments means that it's important to know your status and take an HIV test if you're at risk of being infected.

A person with a sustained, undetectable level of HIV viral load in their blood is unable to transmit HIV to their sexual partners. Evidence from clinical and scientific studies is the foundation of the now universally accepted statement that Undetectable Equals Untransmittable or U=U. The U=U Consensus statement can be viewed on the Prevention Access Campaign website.

HIV pre-exposure prophylaxis (PrEP) in the form of an antiretroviral combination drug became available on the NHS in Scotland in July 2017. PrEP aims to prevent HIV infection among people at highest risk of infection as part of a comprehensive approach to HIV prevention, this is alongside regular HIV testing and safer sex practices. 

The 'Implementation of HIV PrEP in Scotland: First Year Report' describes the first year of the HIV PrEP service - from July 2017 to June 2018. It covers:

  • implementation
  • monitoring
  • uptake
  • preliminary data on outcomes

It highlights the successful implementation of an NHS PrEP service across Scotland with nearly 1900 individuals, mostly men who have sex with men (MSM), having been prescribed PrEP at least once in the first year. Further work is required to determine the impact of PrEP on the incidence of HIV and other sexually transmitted infections.

For further information on PrEP, please visit the HIV Scotland website.


For all infection prevention and control guidance visit the A-Z ​pathogens section of the National Infection and Prevention Control Manual.


The Blood borne viruses (BBV) and sexually transmitted infections (STI) report, produced by our BBV and STI team, describes the epidemiology of Hepatitis C (HCV), Hepatitis B (HBV), HIV and other STIs in Scotland to the end of December 2016. It also describes the impact of interventions in preventing infection and associated disease and highlights public health priorities.

The report also directs readers to other existing Scottish reports and data sources, these are available on our website. The commentary is structured around the outcome indicators detailed in the Scottish Government’s Sexual Health and Blood Borne Virus (SHBBV) Framework, 2015 to 2020.

The first year of the HIV PrEP service - from July 2017 to June 2018 - is described in the Implementation of HIV PrEP in Scotland: First Year Report.

Data and surveillance

HIV infection in Scotland

View the latest quarterly report on HIV infection in Scotland:

Sexual health and blood borne virus framework

The Sexual Health and Blood Borne Virus Framework, first published by the Scottish Government in August 2011 and updated in September 2015, brought together policy areas on sexual health and blood borne viruses, namely HIV, HCV and HBV. The framework supports improvements in sexual health and wellbeing and addresses the impact of blood borne virus infection in Scotland. The framework seeks to strengthen and improve multi-agency partnerships to address the five high-level outcomes:

  1. Fewer newly acquired blood borne viruses and STIs; fewer unintended pregnancies
  2. A reduction in the health inequalities gap in sexual health and blood borne viruses
  3. People affected by blood borne viruses lead longer, healthier lives
  4. Sexual relationships are free from coercion and harm.
  5. A society whereby the attitudes of individuals, the public, professionals and the media in Scotland towards sexual health and blood borne viruses are positive, non-stigmatising and supportive.

Sexual health and blood borne virus (SHBBV) open access data portal

The Sexual Health and Blood Borne Virus (SHBBV) open access Data Portal contains a wealth of information together in a format which allows users to easily monitor Scotland’s progress nationally and locally against the Scottish Government’s SHBBV framework outcomes.