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In article <13468@steinmetz.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes:
>In article <5849@pdn.nm.paradyne.com> alan@rnms1.UUCP (0000-Alan Lovejoy) writes:
>
>| Then we also need either very advanced AI, very advanced biotechnology,
>| or artificial gravity: It appears that low gravity fields shut down the 
>| human immune system in a way similar to the AIDS virus.  Humans will NOT 
>| be spending any appreciable percentage of their lives in space until we 
>| can fix our immune systems so that they tolerate low gravity,  or until
>| we can provide gravity artificially.  As things stand, a career as an
>| asteroid miner would not last long...
>
>  What are the parameters on this? I know the Russians had people in
>orbit for almost a year (didn't they?) and didn't seem to have problems.
>They were visited by other cosmonauts during the time so they weren't in
>a sterile atmosphere.

Since several people have asked, here is a bibliography on this issue:


References: Effects of Hypogravity on the Human Immune System

1. "Microorganisms in the Space Environment,"
   Horneck et al., Science, July 1984, pg. 226

2. "Humoral Immunity at Zero G,"
   Voss et al., Science, July 1984, pg. 214

3. "Effect of Hypogravity on Human Lymphocyte Activation,"
   Aviation, Space and Environmental Medicine, Jan., 1980, pg. 30

4. "Effects of Simulated Weightlessness on IFN Production,"
   Sommerfield et al., Journal Of IF Research, 1982, pg. 462

5. "Influence of Spaceflight on RBC,"
   Talbot et al., FASEB Proceedings, Aug 1985, vol. 45 No. 9

6. "Results Of Space Experiment Program Interferon,"
   Talas et al., Acta Microbiologia Hungarica, 1983, vol. 30

7. "The Immune System and Effect of Hyper- and Hypogravity,"
   Caren et al., Aviation, Space and Environmental Medicine, Nov. 1984, pg. 1063

8. "The Effect of Space Flight on Immunocompetence,"
   Cogoli et al., Immunology Today, 1985, vol. No. 6, pg. 1

9. "The Effects of Space Flight on Immunocompetence,"
   Immunology Today, Vol. 8, No. 7, 1987, pg 197

10. Biomedical Research Program, NASA
    =================================

    Chief, Space Medicine Branch/EB
    Life Sciences Division
    NASA Headquarters,
    Washington D.C. 20546
    USA

I am not a biologist or medical doctor, so please don't ask me for any
professional opinions on this stuff!  Hope this helps.

Alan Lovejoy; alan@pdn; 813-530-2211; AT&T Paradyne: 8550 Ulmerton, Largo, FL.
Disclaimer: I do not speak for AT&T Paradyne.  They do not speak for me. 
__American Investment Deficiency Syndrome => No resistance to foreign invasion.
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