What is AIDS?
AIDS stands for: Acquired Immune Deficiency Syndrome
AIDS is a medical condition. A person is diagnosed with AIDS when their immune system is too weak to fight off infections.
Since AIDS was first identified in the early 1980s, an unprecedented number of people have been affected by the global AIDS epidemic. Today, there are an estimated 33.3 million people living with HIV and AIDS worldwide.
What causes AIDS?
AIDS is caused by HIV.
HIV is a virus that gradually attacks immune system cells. As HIV progressively damages these cells, the body becomes more vulnerable to infections, which it will have difficulty in fighting off. It is at the point of very advanced HIV infection that a person is said to have AIDS. If left untreated, it can take around ten years before HIV has damaged the immune system enough for AIDS to develop.
What are the symptoms of AIDS?
A person is diagnosed with AIDS when they have developed an AIDS related condition or symptom, called an opportunistic infection, or an AIDS related cancer. The infections are called ‘opportunistic’ because they take advantage of the opportunity offered by a weakened immune system.
It is possible for someone to be diagnosed with AIDS even if they have not developed an opportunistic infection. AIDS can be diagnosed when the number of immune system cells (CD4 cells) in the blood of an HIV positive person drops below a certain level.
A person is diagnosed with AIDS when they have developed an AIDS related condition or symptom, called an opportunistic infection, or an AIDS related cancer. The infections are called ‘opportunistic’ because they take advantage of the opportunity offered by a weakened immune system.
It is possible for someone to be diagnosed with AIDS even if they have not developed an opportunistic infection. AIDS can be diagnosed when the number of immune system cells (CD4 cells) in the blood of an HIV positive person drops below a certain level.
Is there a cure for AIDS?
Worryingly, many people think there is a 'cure' for AIDS - which makes them feel safer, and perhaps take risks that they otherwise wouldn't. However, there is still no cure for AIDS. The only way to stay safe is to be aware of how HIV is transmitted and how to prevent HIV infection.
How many people have died from AIDS?
Since the first cases of AIDS were identified in 1981, more than 30 million people have died from AIDS. An estimated 1.8 million people died as a result of AIDS in 2009 alone.
Although there is no cure for AIDS, HIV infection can be prevented, and those living with HIV can take antiretroviral drugs to prevent or delay the onset of AIDS. However, in many countries across the world access to prevention and treatment services is limited. Global leaders have pledged to work towards universal access to HIV prevention and care, so that millions of deaths can be averted.
How is AIDS treated?
Antiretroviral treatment can significantly prolong the lives of people living with HIV. Modern combination therapy is highly effective and someone with HIV who is taking treatment could live for the rest of their life without developing AIDS.
An AIDS diagnosis does not necessarily equate to a death sentence. Many people can still benefit from starting antiretroviral therapy even once they have developed an AIDS defining illness. Better treatment and prevention for opportunistic infections have also helped to improve the quality and length of life for those diagnosed with AIDS.
Treating some opportunistic infections is easier than others. Infections such as herpes zoster and candidiasis of the mouth, throat or vagina, can be managed effectively in most environments. On the other hand, more complex infections such as toxoplasmosis, need advanced medical equipment and infrastructure, which are lacking in many resource-poor areas.
It is also important that treatment is provided for AIDS related pain, which is experienced by almost all people in the very advanced stages of HIV infection.
