

The numbers of people infected by the Human Immunodeficiency Virus (HIV) have reached pandemic proportions globally -- already more than 33 million people are infected. More than 14 million have died.
Photograph © Geostock 1999
AIDS is transmitted by viral infection. The virus is called HIV. When HIV infects the body, it attacks and destroys the immune system which protects us against other infections. Having destroyed the body’s resistance, HIV leaves the body open to infection by other diseases which in turn cause other illnesses.
People who have the HIV virus in their blood are diagnosed HIV-positive -- that is they will have tested seropositive for HIV antibodies in their blood (Anti-HIV test = postive ELISA test).
Following infection, HIV can take between 5 and 15 years and in some cases longer -- depending upon an individual’s level of resistance -- before symptoms show. The HIV virus takes hold in the body’s cells, especially CD4 blood cells where it will reproduce. The blood count becomes depleted as more and more CD4 cells are damaged and the immune system effectively crashes.
As the immune system runs down, diseases and infections which would not normally affect us begin to appear: enlarged lymph glands, sores around the mouth, marks and lesions on the skin, inexplicably high temperatures for protracted periods of time, night sweats, weight loss, diarrhoea and coughing are typical symptoms. Tuberculosis, thrush and other bacterial and fungal diseases known as opportunistic infections develop. A person suffering a number of these symptoms at the same time may have AIDS. Although Kaposi’s sarcoma (an otherwise rare form of skin cancer) and lymphoma are the clearest symptoms, a HIV test is necessary for positive diagnosis of HIV infection.
The three modes of transmission are through sexual intercourse, infected blood and from a mother to her unborn child.
Between 80 and 85% of cases are the result of unprotected sexual intercourse. The HIV virus can be transmitted in blood, sperm and vaginal secretions during sexual intercourse, through the vagina, penis or anus or via abrasions in the mouth or on the skin, from man to woman, woman to man, man to man or woman to woman. Apart from AIDS, other venereal diseases can be transmitted through sexual intercourse such as gonorrhoea, syphilis and viral hepatitis.
Between 10 and 15% of cases are the result of infected blood or blood products since a HIV-positive person carries the virus in his or her blood. There are various modes of transmission:
5-10% of cases are infected this way. A mother can transmit the virus to her child during pregnancy, labour and breastfeeding. Around 30% of HIV-positive mothers transmit the virus to their babies in this way. This rate may be reduced 7% with treatment during pregnancy. Although the rate of infection via breastfeeding is negligible, nevertheless it is not recommended that HIV-positive mothers breastfeed their children. For more information about HIV/AIDS and pregnancy, contact the AIDS Advisory Centre.
HIV cannot be transmitted in everyday situations such as being in the same room, studying at the same school or breathing the same air. Infection does not occur through:
Since sexual transmission is the most common mode because HIV can be transmitted through every form of sexual contact, the condom is your greatest ally in your sexual life. Always use a condom even if the possibility of infection appears to be remote. A common misconception is that the virus is only contracted from prostitutes, drug users and homosexuals. However AIDS is not restricted to any particular social group. The disease can infect anyone regardless of gender, race, colour, religion or age. Once contracted through having unprotected sex with a HIV-positive person, the virus can be passed on to subsequent sexual partners. HIV-positive people should protect themselves and their partners from further risk of infection by always using a condom.
For those who want to protect themselves:
The risk of HIV/AIDS transmission increases with the number of sexual partners. Alcohol and drugs impair your judgement which can lead to unwise or negative decisions regarding your sexual behaviour.
Following HIV infection, your body produces special antibodies to fight the virus. The Anti-HIV Test measures these antibodies in the blood using the ELISA method. Since the body takes a window period of roughly three months to produce HIV-antibodies in sufficient quantities to be detected, the ELISA test should be taken three months after the date of possible infection.
A positive Anti-HIV test can only be confirmed (seropositive) following a Western Blot test which should also be positive. The Anti-HIV Test can be taken in the microbiological department of any university hospital or other private or state hospital.
Advice can be sought in person or by telephone on a range of issues including HIV transmission, the AIDS condition, methods of protection, taking the test, patient care and treatment. Counselling should be sought before taking the test and certainly afterwards.
There have been positive developments in the treatment of HIV/AIDS. Since the HIV virus belongs to a special group known as retroviruses, special anti-retroviral drugs have been developed. Successful treatment can be managed using up to two or three combinations of such drugs. The treatment aims to reduce the presence of the virus in the blood to a minimum level, to reinforce the immune system, to reduce the symptoms of HIV infection, to improve the person’s quality of life and to lower rates of AIDS-related mortality. The treatment should be under strict medical supervision and it should not be interrupted. Although most opportunistic infections can be treated this way, no complete cure for AIDS has been found to date.
HIV in sperm or vaginal secretions can only survive for a matter of a few hours outside of the body. In dried blood, the virus dies within a very short period of time. HIV in the blood or bodily secretions of a seropositive person’s blood on any surface can be destroyed by:
As with other bacteria and micro-organisms, washing vigorously with soap and water for at least fifteen seconds can remove all trace of the HIV virus. After washing, the skin can be swabbed with alcohol. In the case of a wound, iodine or betadine should be used as an antiseptic following a wash with soap and water.
The original version of this document was produced in partnership with the AIDS Savaşım Derneği (Association for the Fight Against AIDS). For more information about AIDS, or to find out how you can help people who are living with AIDS, visit the AIDS Savaşım Derneği website or write to them via email.
Download A Word About AIDS -- the print-ready brochure version of this page. [PDF 50KB]
Read more about HIV/AIDS awareness for Young People in our Programmes section.
Read Understanding AIDS in the Winter 2003 issue of Say Yes, the quarterly newsletter of UNICEF Turkey.
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