Download H.D.HIV Ppt

HIV
H: human
I: immuno-deficiency
V: virus
AIDS
“Acquired
Immune-Deficiency
Syndrome”
Why is it called this?
Rating Behavior for Risk
(Risk Assessment Cards – line-up)
High (orange)
1.
2.
3.
4.
5.
6.
7.
Low (Green) No Risk (Purple)
Holding hands
Drinking from the same can of soda
Using a condom to have sex
Sitting next to someone with HIV
Sharing Needles or syringes
Donating blood
Receiving blood transfusions
Risky???
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Having sexual intercourse w/out condom
Just once??
French kissing
Using someone else’s hairbrush
Eating at a restaurant where cook has HIV or AIDS
Getting a tattoo
Getting your ears pierced with sterilized needle
Having a mother who has HIV before birth of child
Providing first aid to an accident victim
Being bitten by a mosquito
Using public telephones
Chapter 25, (p 658-668)
Lesson 3 & 4

Describe the HIV/ AIDS epidemic in the
teen population.

What is the EIA Test?

Why is HIV considered a pandemic?

How does HIV attack the immune system?

How does Nile Sandeen hope to change
the world?

What are all the ways to contract HIV?
Related Vocabulary

Abstinence

Monogamous

Pathogen

Kaposi’s Sarcoma
What Fluids Transmit HIV?

Blood

Vaginal fluids

Semen (not sperm)

Breast Milk

NOT saliva
What Makes a Behavior Unsafe?
Any exposure to the fluids that
transmit HIV allows the virus to
enter the blood stream, including:
 Unsafe
Sex
 Sharing Needles
 Breastfeeding
 Sharing Razors
What is the Window Period?

Window Period – 3-6 months
the body has not produced
antibodies to the virus…
tests for the virus will show
negative to HIV exposure…
even if the person has the virus
8 – 10 YEARS
Why is this Important???
A person who is HIV positive
can look and feel healthy
(asymptomatic – show no symptoms)
yet be infected with HIV
and be able to pass HIV to others
How can a pregnant mother who is
HIV+ protect her unborn child?

Take her medications as directed to keep
the viral load (the amount of virus per mL
of blood) low.

Have a C-section (Caesarian birth)

Not breast-feed her baby
How Does HIV
Affect the Immune System?
HIV is a virus. Viruses are parasites (need hosts).
The Human Immuno-deficiency Virus:
 enters the nucleus of a T-cell (white blood cell),
 makes a copy of its genetic material in the host cell
 reproduces itself in the cell,
 creates and releases new HIV viruses
 which attach to more T-cells
 The virus kills the T-cells
 When the number of T-cells drops below 200, the
person is said to have AIDS
 The immune system cannot do its job; infections/cancer
take over
 Person dies of an opportunistic disease.
Stages of HIV Infection
 Stage
I
2-6 weeks after exposure to HIV
Feels like the flu
 Stage
II
8-10 years or more after infection
Asymptomatic – NO symptoms
 Stage
III Several more months
Chronic lymphodenopathy
(swollen glands)
Fatigue – extreme tiredness
 Stage
IV Months to several years
Opportunistic Diseases – death
Kaposi’s Sarcoma
Viral Pneumonia
Treatment of HIV/AIDS
Drug Cocktail – combination of several
medicines
 Treatments may include as many as 40 different
doses of medicines daily: some with or without
food, 1 hour before or 2 hours after meals…
 Problems:
*Expensive
*Not available
*Side effects
*Hard to manage dosing schedule: Can’t
miss even one dose or virus mutates

Checking for Understanding
Partner…Share…Write in Journal
1. What 4 ways HIV can be transmitted?
2. What does “asymptomatic” mean?
3. How does it apply to an HIV infection?
4. What are the signs of HIV infection in Stage I?
Stage II? Stage III? Stage IV?
5. What does opportunistic infection mean?
6. Why is early testing and treatment important?
7. Is AIDS getting better or worse in the U.S.?
8. How is AIDS similar/ different from other STDs?
AIDS Statistics
United States
 Washington State
 India, Africa…
