We use a subjective scale and leave the reader to translate the lab reports appropriately. If the bacteria are identified as bad/pathogenic and you are low, then do not enter them.
Bacteria Reported Level Also Known as Comment
Actinomycetota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Actinobacteraeota| Actinobacteraeota Oren et al. 2015| Actinobacteria| Actinobacteriota
Bacteroidia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Bacteroidetes| Bacteroidia| Bacteroidia Krieg 2012
Bacillota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Bacillaeota| Bacillaeota Oren et al. 2015| Bacillota| Bacillus/Clostridium group| clostridial firmicutes| Clostridium group firmicutes| Firmacutes| Firmicutes| Firmicutes corrig. Gibbons and Murray 1978| Low G+C firmicutes| low G+C Gram-positive bacteria| low GC Gram+
Fusobacteriia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Fusobacteria| Fusobacteriia| Fusobacteriia Staley and Whitman 2012
Verrucomicrobiota [phylum]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Verrucomicrobaeota| Verrucomicrobaeota Oren et al. 2015| Verrucomicrobia| Verrucomicrobia (Hedlund et al. 1997) Yoon et al. 2010| Verrucomicrobia Hedlund 2012| Verrucomicrobiota
Bifidobacterium [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bifidibacterium" Prevot 1938| "Tissieria" Pribram 1929| Bifidibacterium| Bifidobacterium| Bifidobacterium Orla-Jensen 1924| Tissieria
Bacteroides uniformis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 8492| Bacteroides uniformis| Bacteroides uniformis Eggerth and Gagnon 1933 (Approved Lists 1980) emend. Hahnke et al. 2016| CCUG 4942| CIP 103695| DSM 6597| JCM 5828| NCTC 13054
Infectious bacteria
Bacteroides ovatus [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacteroides fragilis subsp. ovatus" (Eggerth and Gagnon 1933) Holdeman and Moore 1970| "Pasteurella ovata" (Eggerth and Gagnon 1933) Prevot 1938| "Pseudobacterium ovatum" (Eggerth and Gagnon 1933) Krasil'nikov 1949| ATCC 8483| bacterium NLAE-zl-C11| bacterium NLAE-zl-C34| bacterium NLAE-zl-C500| bacterium NLAE-zl-C57| bacterium NLAE-zl-H304| bacterium NLAE-zl-H361| bacterium NLAE-zl-H59| bacterium NLAE-zl-H73| Bacteroides fragilis subsp. ovatus| Bacteroides ovatus| Bacteroides ovatus Eggerth and Gagnon 1933 (Approved Lists 1980) emend. Hahnke et al. 2016| BCRC 10623| CCRC 10623| CCRC:10623| CCUG 4943| CIP 103756| DSM 1896| JCM 5824| NCTC 11153| Pasteurella ovata| Pseudobacterium ovatum
Prevotella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Prevotella| Prevotella Shah and Collins 1990 emend. Sakamoto and Ohkuma 2012| Prevotella Shah and Collins 1990 emend. Willems and Collins 1995| Xylanibacter| Xylanibacter Ueki et al. 2006
Faecalibacterium prausnitzii [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus mucosus anaerobius" Prausnitz 1922| "Bacteroides praussnitzii" (sic) Hauduroy et al. 1937| ATCC 27768| Bacillus mucosus anaerobius| Bacteroides praussnitzii| butyrate-producing bacterium A2-165| Faecalibacterium prausnitzii| Faecalibacterium prausnitzii (Hauduroy et al. 1937) Duncan et al. 2002| Fusobacterium prausnitzii| Fusobacterium prausnitzii (Hauduroy et al. 1937) Moore and Holdeman 1970 (Approved Lists 1980)| NCIMB 13872
Agathobacter rectalis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacteroides rectalis" Hauduroy et al. 1937| "Pseudobacterium rectale" (Hauduroy et al. 1937) Krasil'nikov 1949| 'Roseburia rectale'| [Eubacterium] rectale| Agathobacter rectalis| Agathobacter rectalis (Hauduroy et al. 1937) Rosero et al. 2016| ATCC 33656| Bacteroides rectalis| CIP 105953| DSM 17629| Eubacterium rectale| Eubacterium rectale (Hauduroy et al. 1937) Prevot 1938| NCIMB 14373| not ATCC 25578| not VPI 0989| Pseudobacterium rectale| Roseburia rectale| strain A1-86| VPI 0990
Anaerobutyricum hallii [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Anaerobutyricum hallii| Anaerobutyricum hallii (Holdeman and Moore 1974) Shetty et al. 2018| ATCC 27751| DSM 3353| Eubacterium hallii| Eubacterium hallii Holdeman and Moore 1974| VPI B4-27
Roseburia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Roseburia| Roseburia Stanton and Savage 1983| Roseburya| Roseburyella
Ruminococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Ruminococcus| Ruminococcus Sijpesteijn 1948
Coprococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Coprococcus| Coprococcus Holdeman and Moore 1974
Butyrivibrio [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Butyrivibrio| Butyrivibrio Bryant and Small 1956
Clostridia [class]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Clostridia| Clostridia Rainey 2010
Fusobacterium [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Fusibacterium| Fusobacterium| Fusobacterium Knorr 1922
Periodontal disease, Lemierre syndrome, skin ulcers
Akkermansia muciniphila [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Akkermansia muciniphila| Akkermansia muciniphila Derrien et al. 2004 emend. Hahnke et al. 2016| Akkermansia sp. YL44| ATCC BAA-835| CIP 107961| strain Muc
High Levels linked to long-lived individuals
Haemophilus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Haemophilus| Haemophilus Winslow et al. 1917
Pathogen
Acinetobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Acinetobacter| Acinetobacter Brisou and Prevot 1954
Klebsiella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Donovania" Anderson et al. 1944| "Hyalococcus" Schroeter 1886| Calymmatobacterium| Calymmatobacterium Aragao and Vianna 1913| Donovania| Hyalococcus| Klebsiella| Klebsiella Trevisan 1885 (Approved Lists 1980) emend. Carter et al. 1999| Klebsiella Trevisan 1885 (Approved Lists 1980) emend. Drancourt et al. 2001
Pathogen
Enterobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Aerobacter" Hormaeche and Edwards 1958| "Cloaca" Castellani and Chalmers 1919| Cloaca| Enterobacter| Enterobacter Hormaeche and Edwards 1960 (Approved Lists 1980) emend. Brady et al. 2013
Urinary and respiratory infections
Serratia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Serratia| Serratia Bizio 1823
Pneumonia, urinary tract infections
Hafnia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Hafnia| Hafnia Moller 1954
Morganella [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Morganella| Morganella Fulton 1943
Pathogen
Citrobacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Citrobacter| Citrobacter Werkman and Gillen 1932| Levinea| Levinea Young et al. 1971
Pathogen
Pseudomonas [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Chlorobacterium" Guillebeau 1890, nom. rejic. Opin. 6 (not "Chlorobacterium" Lauterborn 1916)| "Liquidomonas" Orla-Jensen 1909| "Loefflerella" Holden 1935| Chryseomonas| Chryseomonas Holmes et al. 1986| Flavimonas| Liquidomonas| Loefflerella| Pseudomonas| Pseudomonas Migula 1894 emend. Yang et al. 2013| RNA similarity group I| Serpens| Serpens Hespell 1977
Providencia [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Providencia| Providencia Ewing 1962
Pathogen
Desulfovibrio piger [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 29098| Desulfomonas pigra| Desulfomonas pigra Moore et al. 1976| Desulfovibrio piger| Desulfovibrio piger (Moore et al. 1976) Loubinoux et al. 2002| DSM 749
Bilophila wadsworthia [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 49260| Bilophila wadsworthia| Bilophila wadsworthia Baron et al. 1990| CCUG 32349| strain 7959| WAL 7959
Escherichia coli [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Bacillus coli" Migula 1895| "Bacterium coli commune" Escherich 1885| "Bacterium coli" (Migula 1895) Lehmann and Neumann 1896| ATCC 11775| Bacillus coli| bacterium 10a| Bacterium coli| Bacterium coli commune| bacterium E3| CCUG 24| CCUG 29300| CIP 54.8| DSM 30083| E. coli| Enterococcus coli| Escherichia coli| Escherichia coli (Migula 1895) Castellani and Chalmers 1919| Escherichia sp. 3_2_53FAA| Escherichia sp. MAR| Escherichia/Shigella coli| JCM 1649| LMG 2092| LMG:2092| NBRC 102203| NCCB 54008| NCTC 9001
Diarrheal disease in children and travelers, Foodborne diarrhea outbreaks, hemorrhagic colitis, hemolytic-uremic syndrome
Enterococcus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| "Enterococcus" Thiercelin and Jouhaud 1903| Enterococcus| Enterococcus (ex Thiercelin and Jouhaud 1903) Schleifer and Kilpper-Balz 1984
Lactobacillus [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Lactobacillus| Lactobacillus Beijerinck 1901 (Approved Lists 1980) emend. Cai et al. 2012| Lactobacillus Beijerinck 1901 (Approved Lists 1980) emend. Haakensen et al. 2009| Paralactobacillus| Paralactobacillus Leisner et al. 2000
Pathogen
Methanobrevibacter [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Methanobrevibacter| Methanobrevibacter Balch and Wolfe 1981
Candida albicans [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Pichia kudriavzevii [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Nakaseomyces glabratus [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Candida dubliniensis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Candida parapsilosis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Candida tropicalis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Clavispora lusitaniae [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Blastocystis hominis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Blastocystis hominis
Dientamoeba fragilis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| Dientamoeba fragilis
Giardia intestinalis [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Entamoeba histolytica [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Cryptosporidium [genus]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Cyclospora cayetanensis [No Rank]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
Helicobacter pylori [species]
↓↓↓ Very Low or none
↓↓ Very Low
↓ Low
✓ Normal
↑ High
↑↑ Very High
↑↑↑ Extremely High
| ATCC 43504| ATCC 49396 [[Helicobacter nemestrinae Bronsdon et al. 1991]]| Campylobacter pylori| Campylobacter pylori corrig. Marshall et al. 1985 emend. Fox et al. 1988| Campylobacter pylori corrig. Marshall et al. 1985 emend. Fox et al. 1989| Campylobacter pylori Marshall et al. 1985 corrig. Marshall and Goodwin 1987| Campylobacter pylori subsp. pylori| Campylobacter pylori subsp. pylori Marshall et al. 1985| Campylobacter pyloridis| Campylobacter pyloridis Marshall et al.1985| CCUG 15815 B| CCUG 17874| CCUG 39500| CIP 103995| DSM 21031| DSM 4867| DSM 7492 [[Helicobacter nemestrinae Bronsdon et al. 1991]]| Helicobacter nemestrinae| Helicobacter nemestrinae Bronsdon et al. 1991| Helicobacter pylori| Helicobacter pylori (Marshall et al. 1985) Goodwin et al. 1989| JCM 12093| LMG 18041| LMG 19449| LMG:18041| LMG:19449| NCTC 11637| NCTC 12491 [[Helicobacter nemestrinae Bronsdon et al. 1991]]| strain Royal Perth Hospital 13487| strain T81213-NTB [[Helicobacter nemestrinae Bronsdon et al. 1991]]
Gastric ulcers