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Opinion: Eight cold facts 
New Scientist | by Michael Marshall(noreply@blogger.com) | Mon, Oct 20
New Scientist is the #1 News Source for Common cold
Mucus turns yellow or green whenever you have a bad respiratory infection, viral or bacterial. The colour comes from myeloperoxidase, an enzyme in white blood cells which uses an iron-containing haem molecule, which is green, to catalyse chemical reactions that kill germs.
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Opinion: Tips for Cold and Flu Season - RisMedia.com
Tips for Cold and Flu Season RISMEDIA, February 18, 2009-According to the Centers for Disease Control and Prevention (CDC), the common cold is one of the largest contributors to missed work and school every year. There are more than 200 documented viruses that can cause cold ...
Tue, Feb 17 | from RisMedia.com
