地球上有 10 个病毒粒子，还是更多，还是更少？
Are There 10 Virus Particles on Earth, or More, or Fewer?
机构信息
Molecular and Cellular Biology Division, National Science Foundation, Alexandria, Virginia, USA
Clare Hall College, University of Cambridge, Cambridge, United Kingdom.
出版信息
J Bacteriol. 2020 Apr 9;202(9). doi: 10.1128/JB.00052-20.
The number of virus particles on Earth is frequently reported in the scientific literature and in general-interest publications as being on the order of 10, with some confusion about whether this is a high or low estimate. This number is often given without a source, although it should be attributed to a paper by Hendrix et al. published in 1999 (R. W. Hendrix, M. C. Smith, R. N. Burns, M. E. Ford, and G. F. Hatfull, Proc Natl Acad Sci U S A 96:2192-2197, 1999, https://doi.org/10.1073/pnas.96.5.2192). As with any oft-repeated statistic, it is informative to know how it has been derived and whether it should be revised in the light of new evidence. I review the history of the 10 estimate and use more recent assessments of the number of bacterial and viral particles in various habitats to conclude that the best estimate of the number of virus particles on Earth ("the Hendrix product") remains close to 10 and is unlikely to be either much less or much more than that.
地球上病毒粒子的数量经常在科学文献和大众出版物中被报道，其数量级约为 10，关于这是高还是低的估计存在一些混淆。这个数字通常没有给出来源，尽管它应该归因于 Hendrix 等人在 1999 年发表的一篇论文（R. W. Hendrix、M. C. Smith、R. N. Burns、M. E. Ford 和 G. F. Hatfull，Proc Natl Acad Sci U S A 96:2192-2197，1999，https://doi.org/10.1073/pnas.96.5.2192）。对于任何经常被重复的统计数据，了解它是如何得出的，以及是否应该根据新的证据进行修正，都是很有意义的。我回顾了 10 的估计值的历史，并利用最近对各种生境中细菌和病毒粒子数量的评估，得出结论认为，地球上病毒粒子数量的最佳估计值（“Hendrix 产物”）仍然接近 10，不太可能比这个值少得多或多得多。
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