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December 17, 2010

Staph Bacteria Prefer Humans to Animals

The bacteria that cause staph infections seem to prefer chomping on human blood than on the blood of other animals.

A new study finds that tiny differences in hemoglobin molecules may allow Staphylococcus aureus to thrive better in some bloodstreams than in others, and human hemoglobin is slightly different from hemoglobin in other animals, study researcher Eric Skaar of Vanderbilt University said. Hemoglobin is the oxygen-carrying protein in red blood cells that contains iron.

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