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Biotech / Medical : Nutrition
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From: tom pope5/18/2010 12:33:27 PM
   of 577
 
Sidebar from a longish WSJ article entitled "Can Dirt Do a Little Good?"

Exposure to a variety of bacteria, viruses and other microorganisms may prime the immune system and protect against certain diseases.

* Children who grow up on farms have low rates of allergies and asthma.
* Having one of more older siblings also protects against hay fever, asthma, multiple sclerosis and Type 1 diabetes.
* Autoimmune diseases are rare in rural Africa and Asia, but rise sharply when immigrants from those countries come to the developed world.
* Infants who attend day care during the first six months of life have a lower incidence of eczema and asthma.
* Rates of asthma are higher in West Germany than East Germany, even though air pollution is worse in the East.
* Type 1 diabetes is six times as prevalent in Finland as it is in neighboring Russia, although genetic backgrounds are similar.
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