Researchers at Stanford had every single person on a school site carry a device that tracked their every move in relation to others.  

"The devices logged more than 760,000 incidents when two people were within 10 feet of each other, roughly the maximum distance that a disease can be transmitted through a cough or sneeze.

After collecting the electronic tracking data, the researchers ran thousands of simulations of what would happen if there were a flu outbreak in the school."

 

Click on the link for the article

http://www.medgadget.com/archives/2010/12/entire_school_population_...

 

Click on the link for the abstract from the Proceedings of the National Academy of Sciences

http://www.pnas.org/content/early/2010/12/08/1009094108

 

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