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Revised Estimates for the Number of Human and Bacteria Cells in the Body

19 Aug 2016

Abstract excerpt

Reported values in the literature on the number of cells in the body differ by orders of magnitude and are very seldom supported by any measurements or calculations. Here, we integrate the most up-to-date information on the number of human and bacterial cells in the body. We estimate the total number of bacteria in the 70 kg "reference man" to be 3.8·1013. For human cells, we identify the dominant role of the...

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PMID: 27541692
DOI: 10.1371/journal.pbio.1002533

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