What is AIDS?
AIDS stands for acquired immunodeficiency syndrome, a disease in which
the body's immune
system breaks down. Normally, the immune system fights off infections and
certain other diseases.
When the system fails, a person with AIDS can develop a variety of life-threatening
illnesses.
AIDS is caused by HIV
AIDS is caused by a virus called the human immunodeficiency virus, or HIV.
A virus is one of the
smallest "germs" that can cause disease.
If you have unprotected sex (sexual intercourse without consistent
and correct condom use) or share
needles or syringes with an infected person, you may become infected with
HIV. Specific blood
tests can show evidence of HIV infection. You can be infected with HIV
and have no symptoms at
all. You might feel perfectly healthy, but if you're infected, you can
pass the virus to anyone with
whom you have unprotected sex or share needles or syringes.
Will you get AIDS if you are infected with HIV?
About half of the people with HIV develop AIDS within 10 years, but the
time between infection with
HIV and the onset of AIDS can vary greatly. The severity of the HIV-related
illness or illnesses will
differ from person to person, according to many factors, including the
overall health of the individual.
Today there are promising new medical treatments that can postpone many
of the illnesses
associated with AIDS. This is a step in the right direction, and scientists
are becoming optimistic
that HIV infection will someday be controllable. In the meantime, people
who get medical care to
monitor and treat their HIV infection can carry on with their lives, including
their jobs, for longer than
ever before.
You can become infected with HIV in two main ways:
Having unprotected sexual intercourse - anal, vaginal, or oral -
with an infected person.
Sharing drug needles or syringes with an infected person.
Also, women infected with HIV can pass the virus to their babies during
pregnancy or during birth.
They can also pass it on when breast-feeding. Some people have become infected
by receiving
blood transfusions. Since 1985, however, when careful screening and laboratory
testing of all blood
donations began, this possibility has been greatly reduced.
You cannot be infected by giving blood at a blood bank.
You can get HIV from sexual intercourse
HIV can be spread through sexual intercourse, from male to male, male to
female, female to male,
and, in theory, from female to female.
HIV is sexually transmitted, and HIV is not the only infection that is
passed through intimate sexual
contact. Other sexually transmitted diseases (STDs), such as gonorrhea,
syphilis, herpes, and
chlamydia, can also be contracted through anal, vaginal, and oral intercourse.
If you have one of
these infections and engage in sexual behaviors that can transmit HIV,
you are at greater risk of
getting HIV.
HIV may be in an infected person's blood, semen, or vaginal secretions.
HIV can enter the body
through cuts or sores in the skin. HIV can also enter the body through
the moist lining of the vagina,
penis, rectum, or even the mouth. Some of these cuts or sores are so small
you don't even know
they're there. Anal intercourse with an infected person is one of the ways
HIV has been most
frequently transmitted. Other forms of sexual intercourse, including oral
sex, can spread it as well.
During oral sex, a person who takes semen, blood, or vaginal secretions
into their mouth is at risk of
becoming infected.
Many infected people have no symptoms and have not been tested. If you
have sex with one of
them, you put yourself in danger. Also, the more sexual partners you have,
the greater your chances
of encountering one or more who are infected and of becoming infected yourself.
The only sure way
to avoid infection through sex is to abstain from sexual intercourse or
engage in sexual intercourse
only with someone who is not infected and only has sex with you. Latex
condoms have been shown
to help prevent HIV infection and other sexually transmitted diseases.
But you have to use condoms
correctly every time you have sex - vaginal, anal, or oral. Condoms made
of plastics such as
polyurethane should also be highly effective. Condoms made of lambskin,
however, do not offer good
protection.
You can get HIV from sharing needles
Sharing needles or syringes, even once, is very risky. Many people have
become infected with HIV
and other germs this way. HIV from an infected person can remain in a needle
or syringe and then
be injected directly into the bloodstream of the next person who uses it.
Sharing needles to inject IV
drugs is the most dangerous form of needle sharing.
Sharing needles for other purposes may also transmit HIV and other germs.
These types of needles
include those used to inject steroids and those used for tattooing or ear-piercing.
If you plan to have
your ears pierced or get a tattoo, make sure you go to a qualified person
who uses brand-new or
sterile equipment. Don't be shy about asking questions. Responsible technicians
will explain the
safety measures they follow.
HIV and babies
A woman infected with HIV can pass the virus on to her baby during pregnancy,
while giving birth, or
when breast-feeding. If a woman is infected before or during pregnancy,
her child has about one
chance in four of being born with HIV infection. Medical treatment with
AZT during pregnancy and
labor may reduce the risk of infecting the baby to about 1 in 12. There
must be no breast-feeding by
the infected mother and the baby must be given AZT for the first several
weeks of life. Even then, the
risk of infecting the child cannot be totally eliminated.
Any woman who is considering having a baby and who thinks she might have
done something that
could have caused her to become infected with HIV - even if this occurred
years ago - should seek
counseling and testing for HIV infection to help her make an informed choice
about becoming
pregnant. To find out where to go in your area for counseling and testing,
call your local health
department or the CDC National AIDS Hotline (1-800-342-AIDS).
Blood transfusions and HIV
In the past some people became infected with HIV from receiving blood transfusions.
This risk has
been practically eliminated. Since a 1983 Public Health Service recommendation,
potential blood
donors at risk of HIV infection have been asked not to donate blood. Since
1985 all donated blood
has been tested for evidence for HIV. All blood found to contain evidence
of HIV infection is
discarded. Currently in the United States, there is only a very small chance
of infection with HIV
through a blood transfusion.
You cannot get HIV from giving blood at a blood bank or other blood collection
center. The needles
used for blood donations are sterile. They are used once, then destroyed.
How you cannot get HIV
HIV infection doesn't "just happen." You can't "catch" it like a cold or
flu. Unlike cold or flu viruses,
HIV is not spread by coughs or sneezes. Again, you get HIV by coming in
contact with infected
blood, semen, or vaginal fluids from another person.
You won't get HIV through everyday contact with infected people at school,
work, home, or
anywhere else.
You won't get HIV from clothes, phones, or toilet seats. It can't be passed
on by things like
forks, cups, or other objects that someone who is infected with the virus
has used.
You won't get HIV from eating food prepared by an infected person.
You won't get HIV from a mosquito bite. HIV does not live in a mosquito,
and it is not
transmitted through a mosquito's bite like other germs, such as the ones
that cause malaria.
You won't get it from bedbugs, lice, flies, or other insects, either.
You won't get HIV from sweat, saliva, or tears.
You won't get HIV from a simple kiss. Most scientists agree that although
transmission of
HIV through deep or prolonged kissing may be possible because of potential
blood contact, it
would be unlikely.
Who is really at risk for HIV infection?
There is evidence that HIV, the virus that causes AIDS, has been in the
U.S. at least since 1978.
The following are known risk factors for HIV. You may be at increased risk
of infection if any of the
following have applied to you since 1978.
Have you shared needles or syringes to inject drugs or steroids?
If you are a male, have you had sex with other males?
Have you had sex with someone who you believe may have been infected with
HIV?
Have you had a sexually transmitted disease (STD)?
Have you received blood transfusions or blood products between 1978 and
1985?
Have you had unprotected sex with someone who would answer yes to any of
the above
questions?
If you answered yes to any of the above questions, you should discuss your
need for testing with a
trained counselor. If you are a woman in any of the above categories and
you plan to become
pregnant, counseling and testing are even more important.
If you had unprotected sex with someone and you didn't know their risk
behavior, or you have had
many sexual partners in the last 10 years, then you have increased the
chances that you might be
HIV-infected.