it is a ppt in which there a fuull detail about hiv which is very interesting and awesome

1. By
Chandan Chaitanya B R
10TH A
WPPS

3. introduction
• Origin of AIDS
• About aids
HIV
•About the virus
•Its life cycle
Measures to
stop aids
•Prevention
•spread of aids

4. Origin and recognisation of the disease
• The virus has been trasfered by the
Human primates in sub-saharan africa. While
various sub-groups of the virus acquired
human infectivity at different times, the global
pandemic had its origins in the emergence of
one specific strain – HIV-1 subgroup M –
in léopoldville in the belgian congo (now
kinshasa in the democratic republic of the
congo) in the 1920s.[1]

5. WHAT ACTUALLY IS AIDS
• AIDS-AQUIRED IMMUNIO DIFECIENCY
SYNDROME
• Aids is a mixture of dieseases hence it is called
syndrome
• It is a retro virus caused by human immuno
deficiency syndrome(HIV)

6. What is HIV
• HIV-human immuno deficiency virus. This
virus is a STD (sexually transmitted disease)
dieses which replicates the human DNA and
breaks down the immune system of the
human body.

7. How does HIV cause
• HIV is caused by having sexual contact with
infected persons.
• Transfusion of infected blood.
• Sharing of needles and syringes with an
infected persons.
• From an infected mother to embryo through
placenta.

8. The 2 types Of HIV VIRUS
• Two types of HIV exist: HIV-1 and HIV-2. HIV-1 is
more virulent, is more easily transmitted and is
the cause of the vast majority of HIV infections
globally.[2] The pandemic strain of HIV-1 is
closely related to a virus found in
the chimpanzees of the subspecies Pan
troglodytes troglodytes, which live in the forests
of the Central African nations
of Cameroon, Equatorial Guinea,Gabon, Republic
of Congo (or Congo-Brazzaville), and Central
African Republic. HIV-2 is less transmittable and is
largely confined to West Africa

9. VIDEO TO KNOW THE FUNCTION AND SPREAD OF HIV
HIV LIFECYCLE.mp4
The human immunodeficiency virus is a
lentivirus that causes the acquired
immunodeficiency syndrome, a condition in
humans in which progressive failure of the
immune system allows life-threatening
opportunistic infections and cancers to thrive.

10. SO MAINLY HOW DID HIV/AIDS
TRANSFER FROM NON HUMANS TO
HUMANS
• The majority of HIV researchers agree that HIV
evolved at some point from the closely
related Simian immunodeficiency virus (SIV), and
that SIV or HIV (post mutation) was transferred
from non-human primates to humans in the
recent past (as a type of zoonosis). Research in
this area is conducted using molecular
phylogenetics, comparing viral genomic
sequences to determine relatedness.

11. Life cycle of HIV

13. • People often don’t have any noticeable
symptoms at the time of HIV infection. Any
symptoms they do have are unlikely to be
recognized as being linked to HIV.
• When someone is diagnosed with HIV, this
may change. They may be able to remember
having flu-like symptoms near the time of
their infection. However, at the time, they
probably just thought they had the flu.

14. SYMPTOMS OF ACUTE INFECTION
• When a person first becomes infected with HIV, they are said to be
in the acute stage of infection. The acute stage is a time when the
virus is multiplying very rapidly. At this stage, the immune system
actively tries to fight off the infection.
• Symptoms can occur during this stage of infection. However, HIV
symptoms are difficult to identify unless you know you have been
exposed. Acute HIV symptoms are similar to those of other viral
infections. They include:
• tiredness
• weight loss
• frequent fever and sweats
• lymph node enlargement
• yeast infections
• persistent skin rashes or flaky skin

15. CHRONIC HIV STAGE
• After the virus becomes established in the
body, you will no longer feel sick. This is the
chronic stage of HIV infection. It can last for
many years. During this time you will likely
have no symptoms of infection. Without
treatment, the virus will continue to damage
your immune system. You may eventually
develop AIDS.

16. SYMPTOMS OF ESTABLISHMENT OF
AIDS
• If HIV weakens your immune system enough, you will
develop AIDS. A diagnosis of AIDS means that you
suffer from immunodeficiency. Your body can no
longer effectively fight off many different types of
infections, many of which would have previously been
easily dealt with by your immune system.
• AIDS doesn’t cause many symptoms itself. With AIDS
you will suffer symptoms from opportunistic
infections. These are infections that take advantage of
your decreased immune function. Symptoms and signs
of common opportunistic infections include

17.  dry cough or shortness of breath
 difficult or painful swallowing
 diarrhea lasting for more than a week
 white spots or unusual blemishes in and around the mouth
 pneumonia-like symptoms
 fever
 vision loss
 nausea, abdominal cramps, and vomiting
 red, brown, pink, or purplish blotches on or under the skin or inside
the mouth, nose, or eyelids
 seizures or lack of coordination
 neurological disorders such as depression, memory loss, and
confusion
 severe headaches and neck stiffness
 coma
 development of various cancers

19. • There is prevention for HIV the best way is to
avoid it.
• The safest way is following the 3A’s of HIV
prevention.
 Avoiding sex with multiple partners
 Abstaining from drug use or use of other shin
piercing instruments unless absolutely
necessary(i e medical emergency)

20. THE WAYS IN WHICH HIV CANNOT BE
CAUSED
• It does not cause by sharing food.
• HIV does not cause by shaking
Hands, swimming in the same pool,
By touchink the same same door knob,
towels,comb.

26. Thank you