What does HIV stand for Human Immunodeficiency Virus

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What does HIV stand for?

What does HIV stand for?

Human Immunodeficiency Virus An infection in which HIV enters the blood and is multiplying

Human Immunodeficiency Virus An infection in which HIV enters the blood and is multiplying in the person’s cells. It slowly destroys the immune system by damaging the cells. This will eventually lead to the last stage of HIV; which we know as AIDS. Here is how it works…

Helper T cells ~ white blood cells that activate the immune response when a

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

HIV attaches itself to helper T cells. The virus forces the T cells to

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

As more helper T cells are lost, the immune system is less able to

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.

Acquired Immune Deficiency Syndrome

Acquired Immune Deficiency Syndrome

infections or illnesses that take advantage of a weakened immune system

infections or illnesses that take advantage of a weakened immune system

Little or no symptoms (Asymptomatic) could last up to 10 years White blood cell

Little or no symptoms (Asymptomatic) could last up to 10 years White blood cell count drops below 200. Opportunistic infections appear HIV Fatigue, weight loss, fever and diarrhea Possible mental changes

In the first stages of HIV infection, most people will have very few (if

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 areasymptoms usually These disappear within a week to a month and are often mistaken for another viral infection, such as the flu.

Later Symptoms: • Rapid weight loss • Recurring fever or profuse night sweats •

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

Fluids that transmit the HIV virus: BLOOD VAGINAL FLUID SEMEN BREAST MILK

Fluids that transmit the HIV virus: BLOOD VAGINAL FLUID SEMEN BREAST MILK

How is HIV transmitted?

How is HIV transmitted?

Sexual activity with an infected person • ABSTINENCE is the only 100% effective way

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

Sharing needles with an infected person

Sharing needles with an infected person

 • • injecting drugs or steroids sharing drug equipment or drug solutions sharing

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

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

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

Testing for HIV: HIV antibodies may be found within 6 – 12 weeks after

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.

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

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

When Should I get Tested for HIV? You should be tested for HIV if

When Should I get Tested for HIV? You should be tested for HIV if you have… • had sexual intercourse (vaginal, 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

IS THERE A CURE FOR AIDS?

IS THERE A CURE FOR AIDS?

However…

However…

Even though there is no cure, ARV drugs can slow down the replication process

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.

ANTIRETROVIRAL (ARV) DRUGS: Ø Today there are over 31 FDA approved antiretroviral (ARV) drugs

ANTIRETROVIRAL (ARV) DRUGS: Ø 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

It VERY important to remember that people infected with HIV who are on ARV

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

Assignment: Pg: 577, 1 -4 Pg: 583, 1 -5 Pg: 589, 1 -4 Pg:

Assignment: Pg: 577, 1 -4 Pg: 583, 1 -5 Pg: 589, 1 -4 Pg: 596, 1 -4