Showing posts with label infection. Show all posts
Showing posts with label infection. Show all posts

Tuesday, January 08, 2013

Super Buuuuuuuuugs Innnnnnnnnn Spaaaaaaaaaace!

Ok, all kidding aside, modern astronauts have a very real and very dangerous problem that up to this point has been ignored.  

On September 18, 2006, ground breaking research was performed aboard the Space Shuttle Atlantis. 
Previously dormant bacteria were allowed  to grow, change and multiply, in special nutrient baths,
allowing them to grow, change and multiply.   

As the experiment progressed, it soon demonstrated that bacteria, in the gravity-free environment of space turn into superbugs by gathering together, gaining strength and becoming much more effective at causing disease.  This in compounded by the tenancy of humans to develop weaker immune systems  on orbit than they would have planet-side.   

Taking bacteria on missions is certainly nothing new.  Both Russia and the U.S. have done so for decades.  From the Wired UK article:
  • From ballooning experiments in 1935, to the Sputnik satellites and Gemini spacecraft of the 50s and 60s, and on to the Mir, Apollo and Skylab programs of the 80s and 90s, both Russia and the US have flown bacteria into space. Aboard these craft, bacteria were found to grow more quickly, become more resistant to antibiotics, and swap genes between one another more readily. 
However these new experiments are the first to provide information on how virulent these infectious agents can become.  This problem must be addressed if we ever hope to have extended missions says NASA administrators.  

For more information check out the Wired article 

 

Tuesday, September 25, 2007

Germs Taken Into Space May Come Back Deadlier

from USNews.com

Does this sound like the Andromeda Strain or what? "Deadly germs come back on a research space craft" Perfect B-movie plot , huh? What's even scarier is , it really happened. In a medical experiment, salmonella carried about the space shuttle in the fall of 2006 proved far more lethal to lab mice than the exact same microbe here on Earth. Just how much more deadly? 90% dead vs. 60% dead in twenty-six days. And that was with far less of the microbe in the oral dose. Apparently 167 genes in the space-evolved strain had changed. The likely cause: In zero G the force of fluids passing over the cells is low, similar to conditions in the gastrointestinal tract, and the cells adapted quickly to the new environment.

thanks to slashdot.com for the original article