[sci.med.aids] a question

Luca.Ciastellardi@p8.f307.n331.z2.fidonet.org (Luca Ciastellardi) (12/02/90)

I do still not know exactly the manner the virus can be caught,
i mean i don'know if the spit is dangerous, for how much time, if the cough is 
dangerous, if the blood on a safe skin etc...

I wish to have some serious answer and very precise!
 
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The.Bird@f38.n135.z1.fidonet.org (The "Bird") (12/03/90)

>I do still not know exactly the manner the virus can be caught,
 >i mean i don'know if the spit is dangerous, for how much time, if the cough 
is
 >dangerous, if the blood on a safe skin etc...

 >I wish to have some serious answer and very precise!

According to the Surgen General's report (March 3,
1988):

Page 13 -
There is no known risk of non-sexual infection in most of the situations we
encounter in our daily lives. We know that family members living with
individuals who have the AIDS virus do not become infected except through
sexual contact. THERE IS NO EVIDENCE OF TRANSMISSION(SPREAD) OF AIDS VIRUS BY
EVERYDAY CONTACT EVEN THOUGH THESE FAMILY MEMBERS SHARED FOOD, TOWELS, CUPS,
RAZORS, EVEN TOOTHBRUSHES, AND KISSED EACH OTHER........

Page 16 -
Although the AIDS virus is found in several body fluids, a person acquires the
 
virus during sexual contact with an infected person's blood or semen and
possibly vaginal secretions. The virus then enters a person's blood stream
through their rectum vagina or penis.........

Page 21 -
Everyday living does not present any risk of infection. You CANNOT get AIDS
from casual social contact. Casual social contact should not be confused with
casual sexual contact which IS a major cause of the spread of the AIDS virus.
Casual social contact such as shaking hands, hugging, social kissing, crying,
coughing or sneezing, will not transmit the AIDS virus. Nor has AIDS been
transmitted from swimming in pools or bathing in hot tubs or from eating in
restaurants(even if a restaurant worker has AIDS or carries the AIDS virus.)
AIDS is not contracted from sharing bed linens, towels, cups, straws, dishes
or any other eating utensils. You cannot get AIDS from toilets, doorknobs,
telephones, office machinery, or household furniture. You cannot get AIDS from
 
body massages, masturbation or any nonsexual contact.

From AIDS - THE FACTS by John Langone (1988):

.....it is highly improbable that exposure to toilet seats, drinking glasses,
doorknobs, shower stalls, or food touched by an AIDS victim, or to sneezes,
coughs, saliva, tears, or sweat of a victim, will result in an infection, and
that IN FACT NOBODY IS KNOWN TO HAVE CONTRACTED IT THAT WAY; that AIDS is a
blood-borne disease ............

And from "Health Source" published by the Health Crisis Network of Miami:

The main destructive effect of HIV is in its ability to select certain cells
in the blood and tissues known as T4 lymphocytes, enter the target lymphocyte
and modify itself so that when the lymphocyte divides itself, the HIV virus
becomes part of each new division. This process continues to repeat itself
until many, if not most, of the body's T lymphocytes are infected.

Certain body fluids are very rich in lymphocytes, in particular, blood, semen,
 
vaginal secretions of women and breast milk. Thus these fluids from a person
infected with HIV are infectuous to others when they have an opportunity to
GET INSIDE SKIN TO THE BLOODSTREAM. Other body fluids, such as tears, saliva
and sweat have been able to grow HIV virus under laboratory conditions, but no
 
case of AIDS has ever been reported as due to the transmission of these
fluids.

Here is a quote from the National Academy of Science's
publication "Mobilizing Against AIDS":

 "HIV integrates itself into the genome of an infected cell.
Before the discovery that the virus _replicates_ in cells in the
brain, skin, colon, and cervix, as well as in T lymphocytes and
macrophages, some researchers believed it might be possible to
eradicate the disease by destroying all infected cells in the
body. But this strategy no longer seems feasible. The most
practical goal appears to be to supress viral replication and
prevent the infection of healthy cells."

The book also indicates that recent research findings support
very long term periods of infection prior to indications of
seroconversion because not all infected cells are capable of
producing antibodies. Other tests must be used to determine
infection by the virus. Detection of antibodies alone is just
not accurate enough.

And on heterosexual transmission it states:

 "Many of the early reports about homosexual and heterosexual
transmission of HIV concluded with the speculation that
transmission probably occurred when vrius in infected seminal
fluid entered the bloodstream through small tears in the lining
of the rectum or vagina. But recent evidence indicates that
direct access to the bloodstream probably is not necessary for
sexual transmission. The virus can infect local tissues in the
rectum and the female reproductive tract.".......

 "The probable source of HIV infection in cervical secretions is
infected cervical tissue. In March 1988, Roger Pomerantz of
Massachusetts General Hospital and his colleagues reported that
they isolated HIV from cervical specimens obtained from 4
seropositive women. The cells most often infected were
monocyte/macrophages and endothelial cells."

 "In male-to-female transmission of HIV, contact with infected
semen could lead to local infection of susceptible cervical
cell; replication of the virus in those cells might precede
systemic infection with HIV. Female-to-male transmission
probably results from the sloughing of infected cervical cells
into cervical and vaginal fluids."

..."Bird"

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