Green or yellow phlegm likely to be bacterial

NEW YORK (Reuters Health) - Confirming widespread beliefs by doctors and parents alike, the color of phlegm coughed up by people is indeed a good indicator of whether that person has a bacterial infection, an international group of researchers found.

Source: http://feeds.reuters.com/~r/reuters/healthNews/~3/2dn12zpwODA/us-phlegm-idUSTRE7AA04M20111111

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