HIV AIDS

HIV is a virus that attacks immune cells called CD-4 cells, which are a subset of T cells. AIDS is the syndrome, which may or may not appear in the advanced stage of HIV infection.
HIV is a virus. AIDS is a medical condition.
HIV infection can cause AIDS to develop. However, it is possible to contract HIV without developing AIDS. Without treatment, HIV can progress and, eventually, it will develop into AIDS in the vast majority of cases.

Causes:

The virus progresses in the absence of antiretroviral therapy (ART) - a drug therapy that slows or prevents the virus from developing.HIV is a retrovirus that infects the vital organs and cells of the human immune system.
The rate of virus progression varies widely between individuals and depends on many factors.
These factors include the age of the individual, the body's ability to defend against HIV, access to healthcare, the presence of other infections, the individual's genetic inheritance, resistance to certain strains of HIV, and more.

How is HIV transmitted:
Sexual transmission — it can happen when there is contact with infected sexual fluids (rectal, genital, or oral mucous membranes). This can happen while having sex without a condom, including vaginal, oral, and anal sex, or sharing sex toys with someone who is HIV-positive.
Perinatal transmission — a mother can transmit HIV to her child during childbirth, pregnancy, and also through breastfeeding.
Blood transmission — the risk of transmitting HIV through blood transfusion is extremely low in developed countries, thanks to meticulous screening and precautions. However, among people who inject drugs, sharing and reusing syringes contaminated with HIV-infected blood is extremely hazardous.

Symptoms:
For the most part, the later symptoms of HIV infection are the result of infections caused by bacteria, viruses, fungi, and/or parasites.
These conditions do not normally develop in individuals with healthy immune systems, which protect the body against infection.

The symptoms of early HIV infection may include:
>fever
>chills
>joint pain
>muscle aches
>sore throat
>sweats (particularly at night)
>enlarged glands
>a red rash
>tiredness
>weakness
>unintentional weight loss
>thrush
It is important to remember that these symptoms appear when the body is fighting off many types of viruses, not just HIV. However, if you have several of these symptoms and believe you could have been at risk of contracting HIV in the last few weeks, you should take a test.

Treatment:
Earlier HIV antiretroviral treatment is crucial — it improves quality of life, extends life expectancy, and reduces the risk of transmission, according to the World Health Organization's guidelines issued in June 2013.There is currently no cure for HIV or AIDS. Treatments can stop the progression of the condition and allow most people living with HIV the opportunity to live a long and relatively healthy life.
Currently, there is no vaccine or cure for HIV, but treatments have evolved which are much more effective and better tolerated; they can improve patients' general health and quality of life considerably, in as little as one pill per day.
It is now established that, given the right treatment, someone living with HIV can reduce his or her viral load to such a degree that it is no longer detectable. After assessing a number of large studies, the CDC concluded that individuals who have no detectable viral load "have effectively no risk of sexually transmitting the virus to an HIV-negative partner."