Simple science

simple science

A guide to what is happening inside your body when you become HIV positive, and stages of infection.

  • What is HIV?

    The nature and effect of the Human Immunodeficiency Virus.
  • The HIV test

    What does the HV test look for and when can the virus be detected?
  • The immune system

    The body’s mechanism for protecting itself against harmful organisms such as bacteria and viruses.
  • What's happening?

    Your body’s response to HIV and how it may make you feel.
  • Stages of HIV infection

    From becoming HIV positive to the possibility of symptoms and late-stage infection.
  • How is HIV passed on?

    Ways in which HIV can be transmitted and factors that affect whether it is passed on.
  • How is HIV not passed on?

    Clearing up misconceptions about how HIV can be transmitted.
  • Facts and figures

    How many people are living with HIV in the UK and worldwide?

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What is this? This site is for everyone. You can choose to see content for the groups most affected by HIV in the UK.

My health status