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Understanding HIV & AIDS.

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Presentation on theme: "Understanding HIV & AIDS."— Presentation transcript:

1 Understanding HIV & AIDS

2 What does HIV stand for?

3 Human Immunodeficiency Virus
An infection in which HIV enters the blood and is multiplying in the person’s cells.

4 Healthy people carry about
Helper T cells ~ white blood cells that activate the immune response when a pathogen enters the body. Healthy people carry about 500 – 1500 helper T cells in about 20 drops of blood Video on picture

5 The process of replication then starts over.
HIV attaches itself to helper T cells. The virus forces the T cells to make copies of the HIV, this is replication New viruses are released from the T cells and they attach to other cells. The process of replication then starts over.

6 When a person’s white blood cell count gets
As more helper T cells are lost, the immune system is less able to fight off infection. This could take years. When a person’s white blood cell count gets below 200 per milliliter of blood, they are said to have AIDS.

7 AIDS Acquired Immune Deficiency Syndrome

8 Opportunistic Infections
infections or illnesses that take advantage of a weakened immune system

9 Phases & Symptoms of HIV

10 Phase 1 Phase 2 Phase 3 HIV Little or no symptoms (Asymptomatic)
could last up to 10 years HIV Fatigue, weight loss, fever and diarrhea Possible mental changes White blood cell count drops below200. Opportunistic infections appear Phase 2 Phase 3

11 In the first stages of HIV infection, most people will have very few (if any) symptoms. Within a month or two after infection, they may experience a flu-like illness: Fever Headache Tiredness Enlarged lymph nodes in the neck and groin area These symptoms usually disappear within a week to a month and are often mistaken for another viral infection, such as the flu.

12 Later Symptoms: Rapid weight loss Recurring fever or profuse night sweats Extreme and unexplained tiredness Prolonged swelling of the lymph glands in the armpits, groin, or neck Diarrhea that lasts for more than a week Sores of the mouth, anus, or genitals Pneumonia Red, brown, pink, or purplish blotches on or under the skin or inside the mouth, nose, or eyelids Memory loss, depression, and other neurologic disorders

13 BLOOD Vaginal Fluid semen Breast milk
Fluids that transmit the HIV virus: BLOOD Vaginal Fluid semen Breast milk

14 How is HIV transmitted?

15 Sexual activity with an infected person
ABSTINENCE is the only 100% effective way to prevent HIV infection through sexual transmission.

16 with an infected person
Sharing needles with an infected person

17 injecting drugs or steroids
sharing drug equipment or drug solutions sharing objects used for piercing or tattooing Blood Transfusion

18 Infected mother to her infant before or during the birth process or
breast feeding

19 Testing for HIV: HIV antibodies may be found within
6 – 12 weeks after infected with HIV. In rare cases up to 6 months, for these tests to be accurate.

20 2 tests given to test for HIV are:
Elisa Test Western Blot Test

21 When Should I get Tested for HIV?
You should be tested for HIV if you have… had sexual intercourse (vaginal, oral, or anal) without a condom learned that a partner was not monogamous have been sexually assaulted had a condom break shared needles or syringes to inject drugs (including steroids) or for body piercing, tattooing, or any other reason had multiple sexual partners found out that a partner has shared needles learned that a past or current partner is HIV-positive discovered that a partner has been exposed to HIV had a recent diagnosis of another sexually transmitted infection (STI) are pregnant

22 Is there a cure for aids?

23 However…

24 process allowing people with HIV to live longer,
Even though there is no cure, ARV drugs can slow down the replication process allowing people with HIV to live longer, healthier lives than those who are infected with HIV who are not taking ARV drugs. Video on picture

25 AZT is the most common drug used These drugs
ANTIRETROVIRAL (ARV) DRUGS: Today there are over 31 FDA approved antiretroviral (ARV) drugs to treat HIV/AIDS. These drugs DO NOT cure people with HIV/AIDS, they just suppress the virus. AZT is the most common drug used

26 It VERY important to remember that people infected with HIV who are on ARV drugs can STILL TRANSMIT HIV to others!


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