Sizes of representative bacteria, viruses, yeasts, protozoa, and human red cells. The bacteria range in size from Mycoplasma, the smallest, to Bacillus.

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Sizes of representative bacteria, viruses, yeasts, protozoa, and human red cells. The bacteria range in size from Mycoplasma, the smallest, to Bacillus anthracis, one of the largest. The viruses range from poliovirus, one of the smallest, to poxviruses, the largest. Yeasts, such as Candida albicans, are generally larger than bacteria. Protozoa have many different forms and a broad size range. HIV, human immunodeficiency virus. (Reproduced with permission from Joklik WK et al. Zinsser Microbiology. 20th ed. Originally published by Appleton & Lange. Copyright 1992, McGraw-Hill.) Source: Structure of Bacterial Cells, Review of Medical Microbiology and Immunology, 14e Citation: Levinson W. Review of Medical Microbiology and Immunology, 14e; 2016 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1792/mmi14_ch2_f002.png&sec=134506798&BookID=1792&ChapterSecID=120715560&imagename= Accessed: October 10, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved