Clinical Bacteriology Identification Tables Index
Tables are posted in pdf format.
(requires the Acrobat Reader ).
This page will be updated as new Identification Tables become available either in critiques or CMPT Connections articles. Please also consult recent textbooks and scientific journals for new and / or additional tests, terminology and nomenclature. Laboratories using automated or manual commercial identification systems should be aware of the species in the system database and the performance of that system.
| Printer-friendly copy pdf-format | GRAM-POSITIVE COCCI |
| Table 1. | Table 1. Differentiating gram-positive cocci and coccobacillary genera (Enterococci, Streptococci, Lactococci, Aerococci, Gemella, Pediococci, Leuconostoc, Lactobacilli) |
| Table 2. | Table 2. Some tests useful to differentiate Streptococcus gallolyticus (formerly S. bovis), Streptococcus mutans, and Enterococcus faecalis.( revised 17 July 2006) |
| Table 7. | Table 7. (revised April 2008) Tests used to speciate Enterococcus - VRE |
| Table 5. | Table 5. Tests available to differentiate large-colony-forming beta-hemolytic streptococci from each other and from the anginosus group revised July 2008 |
| Table 8. | Table 8. Tests useful for the identification of Leuconostoc species and their differentiation from Pediococcus species, vancomycin-resistant enterococci, viridans group streptococci, and Aerococcus viridans. |
| Table 9. |
Table 9. (rev April 09) An aide to the identification of miscellaneous catalase-negative gram-positive cocci. Nutritionally-variant streptococci: Granulicatella, Abiotrophia, and Facklamia, Ignavigranum, Globicatella, Dolosicoccus, Aerococcus, Gemella, Pediococci, Leuconostoc, viridans group streptococci, Streptococcus gallolyticus (formerly S. bovis), Enterococcus. |
| Flowchart 1 (pdf only) |
Identification of Staphylococcus lugdunensis and Staphylococcus aureus |
| GRAM-POSITIVE BACILLI | |
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Table 10. Revised Oct 2008 |
Gram-positive bacilli-a guide to identification testing, including selected notes - print in landscape setting |
| GRAM-NEGATIVE BACILLI | |
| Table 3. | Table 3. Tests used to differentiate Aeromonas, Vibrio cholera, and Plesiomonas shigelloides. (Note re vibrio vulnificus) |
| Table 4. Revised Oct 2008 |
Table 4 Recent nomenclature changes and organism classification have prompted editing of Tables 4a and 4b into one Table 4. Identification of fastidious gram-negative bacilli and gram-negative coccobacilli. Lists many organisms that may be difficult to identify. Please consult your SOPs, recent reference text books, and Internet resources for help. |
| Table 6. Revised Feb 2009 |
Tests used to differentiate Roseomonas and Methylobacterium and other (pink-pigmented oxidative organisms) |
| Table 11. Posted Feb 2009 |
Comparison of classic tests for some infrequently isolated gram-negative bacilli that grow on blood agar. (Full article CMPT Connections 2008 4:4) |
| Cryptococcus - see M013-5 - not a table; and G061 | |