http://www.nasa.gov/exploration/humanresearch/areas_study/physiology/physiology_immunology.html
Areas of Study: Immunology
Decades of research
Have Shown That the human Changes in the immune response space environment, but the exact causes and mechanisms of these immune system changes have not yet been determined definitively. Immune system suppression seems to be a common problem in spaceflight, and because some bacteria and other micro-organisms can be more dangerous in the space environment than on Earth, crewmembers may be at greater risk for contracting illnesses and diseases.
Because preliminary research has shown that certain types of bacteria and other micro-organisms may be more dangerous and pose a greater risk of contagion in the space environment, understanding the human immune system’s response during spaceflight is an important research priority.
Although most existing research on this topic has been drawn from relatively short-term shuttle missions, research HRP Suggests That May Result in Longer flights to Greater degree of immune system suppression or disturbance. As Such, the study of human immunology in long-term space habitation space flight or is likely to Be an area of \u200b\u200bresearch as That Receives Greater Attention prepare NASA for future long-duration missions.
Making a brief review on the subject I found an article of 2009 Guéguinou and colleagues at the University of Nancy (France) interesting about the immunosuppressive effects, infections and other diseases that may be associated with this type of mission. Could
spaceflight-associated immune system weakening preclude the expansion of human Presence Beyond Earth's orbit?
http://www.jleukbio.org/content/86/5/1027.full.pdf+html
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