HIV and STIs
The predominant transmission mode of both HIV and other STIs is sexual intercourse. In addition, strong evidence supports several biological mechanisms through which STIs facilitate HIV transmission by increasing both HIV infectiousness and HIV susceptibility. Methods for preventing sexual transmission of HIV and STIs are the same, as are the target audiences for interventions.
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Human Immunodeficiency Virus (HIV)At the end of 2008 an estimated 83,000 persons of all ages were living with HIV in the UK, a quarter of whom were unaware of their infection. The infection is still frequently regarded as stigmatising and has a prolonged ‘silent’ period during which it often remains undiagnosed. |
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Sexually Transmitted Infections (STIs)STIs are diseases that can be transmitted by unprotected sex between two people. Not everyone with an STI will have signs and symptoms of the condition. If a person does present with symptoms, these may include increased discharge, pain or ulcers. If the STIs are left undetected and untreated they may result in serious complications in later years. |
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Prevention GroupsHIV and STIs are not uniformly distributed in the UK population. There are population groups at particular risk of acquiring HIV and STIs. Here we summarise surveillance data and appropriate sexual health messages for populations that require targeted prevention. |
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Data for CommissionersThis page summarises HIV and STI epidemiology data that may be of use to sexual health commissioners. |
What's new
- 1 September 2011: New HIV Diagnoses: Data to the end of June 2011Survey of Prevalent HIV Infections Diagnosed (SOPHID) 2010 data
- 15 June 2011: STI Annual Data Tables 2010Sexual Health Profiles - updated
- 3 June 2011: 30 years on: people living with HIV in the UK about to reach 100,000
- 23 March 2011: New HIV Diagnoses data 2011
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