By Science News Staff, 17:28 PM January 23, 2014

Counting up microbes

The Science News top story of 2013 was reported in “Your body is mostly microbes” by Tina Hesman Saey (SN: 12/28/13, p. 18). The article noted that “only about 10 percent of a person’s cells are human; microbes make up the other 90 percent.”

Several readers noted that although microbes make up 90 percent of a person’s total number of cells, most of a person’s mass is quite human. “The unsuspecting reader of this article may be led to believe that the human body consists of ...

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