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"Cow milk allergy occurs in children and in adults. Scientists at Messerli Research Institute at the Vetmeduni Vienna, the Medical University of Vienna, and the University of Vienna investigated what actually makes the milk allergenic. A specific protein in milk known as beta-lactoglobulin is able to initiate an allergy only when being devoid of iron. Loaded with iron, the protein is harmless. The scientists discovered the same mechanism recently with regard to birch pollen allergy. Their findings help to decipher allergic reactions and were published in the journal PLOS ONE."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2014-08-scientists-uncover-major-cow-allergen.html>