FAQ's

When does a person have AIDS?

The term AIDS applies to the most advanced stages of HIV infection. The majority of people infected with HIV, if not treated, develop signs of AIDS within eight to 10 years. AIDS is identified on the basis of certain infections. Stage 1 HIV disease is asymptomatic and not categorized as AIDS. Stage II (includes minor mucocutaneous manifestations and recurrent upper respiratory tract infections), III (includes unexplained chronic diarrhoea for longer than a month, severe bacterial infections and pulmonary tuberculosis) or IV (includes toxoplasmosis of the brain, candidiasis of the oesophagus, trachea, bronchi or lungs and Kaposi’s sarcoma) HIV disease are used as indicators of AIDS. Most of these conditions are opportunistic infections that can be treated easily in healthy people. In addition, the United States Centers for Disease Control and Prevention defines AIDS on the basis of a CD4-positive T-cell count of less than 200 per mm3 of blood (see: http://www.cdc.gov/epo/dphsi/print/aids1993.htm). CD4-positive T-cells are critical

When does a person have AIDS?

The term AIDS applies to the most advanced stages of HIV infection. The majority of people infected with HIV, if not treated, develop signs of AIDS within eight to 10 years. AIDS is identified on the basis of certain infections. Stage 1 HIV disease is asymptomatic and not categorized as AIDS. Stage II (includes minor mucocutaneous manifestations and recurrent upper respiratory tract infections), III (includes unexplained chronic diarrhoea for longer than a month, severe bacterial infections and pulmonary tuberculosis) or IV (includes toxoplasmosis of the brain, candidiasis of the oesophagus, trachea, bronchi or lungs and Kaposi’s sarcoma) HIV disease are used as indicators of AIDS. Most of these conditions are opportunistic infections that can be treated easily in healthy people. In addition, the United States Centers for Disease Control and Prevention defines AIDS on the basis of a CD4-positive T-cell count of less than 200 per mm3 of blood (see: http://www.cdc.gov/epo/dphsi/print/aids1993.htm). CD4-positive T-cells are critical in mounting an effective immune response to infections.

What are the symptoms of HIV?

Most people infected with HIV do not know that they have become infected. Immediately after the infection, some people have a glandular fever-like illness (with fever, rash, joint pains and enlarged lymph nodes), which can occur at the time of seroconversion. Seroconversion refers to the development of antibodies to HIV and usually takes place between one and two months after an infection has occurred. Despite the fact that HIV infection often does not cause any symptoms, a person newly infected with HIV is infectious and can transmit the virus to another person. The way to determine whether HIV infection has occurred is by taking an HIV test. HIV infection causes a gradual depletion and weakening of the immune system. This results in an increased susceptibility of the body to infections and cancers and can lead to the development of AIDS.

What is HIV?

HIV stands for human immunodeficiency virus. HIV is a retrovirus that infects cells of the human immune system (mainly CD4-positive T-cells and macrophages—key components of the cellular immune system) and destroys or impairs their function. Infection with this virus results in the progressive depletion of the immune system, leading to immunodeficiency. The immune system is considered deficient when it can no longer fulfil its role of fighting off infection and diseases. People with immunodeficiency are much more vulnerable to a wide range of infections and cancers, most of which are rare among people without immunodeficiency. Diseases associated with severe immunodeficiency are known as opportunistic infections because they take advantage of a weakened immune system.

What is AIDS?

AIDS stands for acquired immunodeficiency syndrome and describes the collection of symptoms and infections associated with acquired deficiency of the immune system. Infection with HIV has been established as the underlying cause of AIDS. The level of immunodeficiency or the appearance of certain infections are used as indicators that HIV infection has progressed to AIDS.