[sci.med.aids] Aids Transmission

Rob.Carr@f81.n129.z1.fidonet.org (Rob Carr) (01/05/90)

Transmission of AIDS (actually the Human Immunodeficiency Virus, or HIV) occurs  
through the exchange of bodily fluids.  "Body fluids" was the term someone came  
up with to avoid saying blood and semen, but also includes cerebrospinal fluid,  
pericardial lubrication, sweat, saliva, tears, urine, feces, etc.
 
Most studies have placed the risk of infection from saliva, sweat, tears, and  
urine at zero to near zero, to the point that the CDC no longer collects stats  
on HIV transmission from contact with saliva, sweat, or tears.  (I'm not sure  
if they collect on urine, but I doubt it).
 
So how does a woman transmit HIV to someone else?  Well, the vaginal  
lubrication produced as a part of foreplay or sex could contain HIV.  If the  
woman has just started her period or has open wounds in the vagina (abrasions,  
microscopic breakages of blood vessels, etc.) the virus could become available  
that way also.  Anal sex would provide similar modes of transmission.
 
So how would the partner contract it?  Well, for males, any skin disturbance on  
the penis would interfere with the skin acting as a barrier against the virus.   
This means abrasions, rashes, etc.  To tell the truth, I'm not too sure how  
likely female-female transmission is.  A couple Lesbian friends tease me about  
their being in the lowest risk group that there is (lesbian, non-drug user,  
non-medical and non-lab work) and that my being a paramedic puts me at much  
greater risk than they are (oh, they're monogamous, too).  Any female-female  
transmission would be by the fluid-broken skin route, too.
 
Not too important any more is the blood transmission route.  Back before they  
could test for HIV or knew what AIDS was, this was a significant route.  Now  
adays, they can test for HIV antibodies and ask people in the high-risk groups  
not to donate.  Since a few people can be HIV antibody negative yet harbor the  
virus for years, the restriction on high-risk groups is, unfortunately, still  
necessary.
 
Please feel free to ask more questions.  And if anyone can improve on my answer  
or correct any misinformation I may have, please do so (please no comments on  
my spelling!).
 
BTW:  the June 3 1989 Science News has the article on HIV antibody negative/HIV  
infected individuals.

--  
Uucp: ...{gatech,ames,rutgers}!ncar!asuvax!stjhmc!129!81!Rob.Carr
Internet: Rob.Carr@f81.n129.z1.fidonet.org

Rob.Carr@f81.n129.z1.fidonet.org (Rob Carr) (01/08/90)

The human organ we call skin is one of the more impressive systems of the 
body.  Of course, I am impressed by anything which can be considered 
"interesting," which leads to some pretty boring discussions.
 
Anyway, one of the functions of the skin is to keep out dangerous foreign 
substances.  A perfect example would be the HIV virus.  OK, so that's a 
redundancy.  How else could I phrase it?  Anyway, the virus doesn't seem 
to be able to penetrate a section of intact skin.  That's cool.
 
Unfortunately, there is the question of what constitutes "skin" and 
"intact."  For example, topologically speaking, your kidneys are exposed 
to the outside.  And so is everything in between.  While most of your 
body is coverskin, the "outside" of your kidneys aren't.  Nor is the 
bladder nor the ureters nor the urethra.  So any virus that makes it's 
way up there will have fairly free access to your body.  I suspect that 
this is a rare occurance.  On the other hand, microscopic cuts in the 
skin or even skin diseases which have no visible component may prevent 
the skin from behaving as a barrier to HIV.  Considering what happens to 
the penis during ANY form of sex (heterosexual, homosexual, monaural, 
stereo, etc) I question how efficient a viral barrier the skin on the 
penis is.
 
I swear I'm not on drugs tonight.  Just tired.     :-}

--  
Uucp: ...{gatech,ames,rutgers}!ncar!asuvax!stjhmc!129!81!Rob.Carr
Internet: Rob.Carr@f81.n129.z1.fidonet.org

Wounded.Bird@f38.n135.z1.fidonet.org (Wounded Bird) (02/07/90)

>   The PBS series Aids Quarterly (this past weekend) had a story on
>how federal AIDS education money is spent.  One segment, on Florida,
>pointed out that even in Miami, the health department [which gets the
>money from the feds] gives almost nothing to community education programs.
>If almost no money is used in the state's center of infection, imagine
>how little is spent in Jacksonville where George lives !!!
>    I didn't quite understand the Colorado section on education funding,
>but I believe they spent more money on contact tracing to find 50 contacts
>than they did on all education aspects.. I'll have to watch the rerun
>to clear this one up.

Dave, I watched that documentary and have a vivid memory of what was said since  
it angered me so much:

In Florida about $2.2million is allocated to South Fla. H.R.S. who stated on  
the program that their finest project was a booth at a Mexican/American  
festival and a float in a parade. The intimation was that there were no funds  
left after covering HRS salaries. I choke on this when Dade County is  
considering cutting in half the budget allotment for" Meals on Wheels" who give  
7 meals a week in the form of 7 frozen dinners to 300 people who would  
otherwise die of malnutrition rather than AIDS.

North Carolina (Jesse Helms) does not give one dime to Gay Outreach or  
educational programs. Apparently blacks represent 48% of HIV cases there. They  
have one individual who apparently had total funding of $10,500 to go around  
and teach about AIDS.

In Colorado not one dime goes to community outreach and education programs. All  
of the money goes towards testing and tracing. They spent $450,000 and were  
able to trace 52 people. That's 9 grand each- more than enough to treat 70  
people with AZT, Aerosol Pentamidine and Acyclovir for a YEAR.

I must now agree with some posters here that have said the Federal Government  
is spending too much money on AIDS. If the AIDS Quarterly report is  
representative of how the Federal Funds are being spent by the states, we are  
throwing money down the drain and it should be stopped.

As a PWA I wonder whether the other Federal Agencies such as the CDC, FDA or  
NIHC are doing any better. Needless to say I am now very skeptical as well as  
discouraged.

--  
Uucp: ...{gatech,ames,rutgers}!ncar!asuvax!stjhmc!135!38!Wounded.Bird
Internet: Wounded.Bird@f38.n135.z1.fidonet.org

aids@squid.cs.ucla.edu (Support Account for SCI.MED.AIDS) (02/07/90)

>   The PBS series Aids Quarterly (this past weekend) had a story on
>how federal AIDS education money is spent.  One segment, on Florida,
>pointed out that even in Miami, the health department [which gets the
>money from the feds] gives almost nothing to community education programs.
>If almost no money is used in the state's center of infection, imagine
>how little is spent in Jacksonville where George lives !!!
>    I didn't quite understand the Colorado section on education funding,
>but I believe they spent more money on contact tracing to find 50 contacts
>than they did on all education aspects.. I'll have to watch the rerun
>to clear this one up.

Dave, I watched that documentary and have a vivid memory of what was said since
it angered me so much:

In Florida about $2.2million is allocated to South Fla. H.R.S. who stated on
the program that their finest project was a booth at a Mexican/American
festival and a float in a parade. The intimation was that there were no funds
left after covering HRS salaries. I choke on this when Dade County is
considering cutting in half the budget allotment for" Meals on Wheels" who give
7 meals a week in the form of 7 frozen dinners to 300 people who would
otherwise die of malnutrition rather than AIDS.

North Carolina (Jesse Helms) does not give one dime to Gay Outreach or
educational programs. Apparently blacks represent 48% of HIV cases there. They
have one individual who apparently had total funding of $10,500 to go around
and teach about AIDS.

In Colorado not one dime goes to community outreach and education programs. All
of the money goes towards testing and tracing. They spent $450,000 and were
able to trace 52 people. That's 9 grand each- more than enough to treat 70
people with AZT, Aerosol Pentamidine and Acyclovir for a YEAR.

I must now agree with some posters here that have said the Federal Government
is spending too much money on AIDS. If the AIDS Quarterly report is
representative of how the Federal Funds are being spent by the states, we are
throwing money down the drain and it should be stopped.

As a PWA I wonder whether the other Federal Agencies such as the CDC, FDA or
NIHC are doing any better. Needless to say I am now very skeptical as well as
discouraged.

--
Uucp: ...{gatech,ames,rutgers}!ncar!asuvax!stjhmc!135!38!Wounded.Bird
Internet: Wounded.Bird@f38.n135.z1.fidonet.org

<^>v Via SCI.MED.AIDS => AIDSNEWS gateway / aids@cs.ucla.edu