Arginine dehydrolase, lysine decarboxylase, ornithine decarboxylase, glycerol, xylitol, L(+) arabinose, dulcitol, meso-inositol,
mannitol, D(-) sorbitol, D(+) mannose, L(+) rhamnose, L(-) sorbose, cellobiose, lactose, ONPG, D(+) melibiose, sucrose
(saccharose), trehalose, raffinose, inulin, esculin, salicin & α-glucosidase (PNPG)   are negative.

Indole, D(+) xylose & gas production from D(+) glucose are variable.
Haemophilus haemolyticus
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Haemophilus,
Haemophilus  haemolyticus   
Bergey, Harrison, Breed, Hammer and Huntoon 1923.
Historical synonyms: "Bacillus X", Pritchett and Stillman 1919.
Gram negative coccobacilli or rods, filamentous forms,  non-capsulated.
Colonies on chocolate agar are smooth,  convex, translucent, grayish, 0.5-1.5 mm in
diameter after 24 hours.  Beta-hemolysis, lost after subcultivation.
Aerobic, facultatively anaerobic, require X-factor and  V-factor for growth. CO
2 is not
required. Growth on Mac Conkey agar is negative.
Nasopharynx of the healthy humans and in subgingival dental plaque
None.
  1. Mogens Kilian, 2004.Genus III. Haemophilus. In:  Bergey’s Manual of Systematic Bacteriology, Second edition,Vol two, part B,
    George M. Garrity (Editor-in-Chief), pp. 883-904.
  2. Mary P.E. Slack, 2006. Haemophilus. In: Topley & Wilson’s Microbiology and Microbial Infections, 10 edition, Vol. 2, Bacteriology,
    Edward Arnold Ltd.
  3. J. G.Holt et al., 1994. Begey’s manual of Determinative Bacteriology, 9-edition, Williams & Wilkins.
  4. Zinnemann K., Biberstein E.L., 1975.Genus Haemophilus.In:Buchanan R.E., Gibbons N.E. (co-editors), Bergey’s  Manual of
    Determinative Bacteriology, eight edition, The Williams & Wilkins Company, Baltimore.
  5. Pozsgi N., 1985. Genul Pasteurella. In: Bacteriologie medicala, vol II, v. Bilbiie, N. Pozsgi (sub redactia), Ed. Medicala, Bucuresti,
    132-133.
Nitrates reduction, oxidase, alkaline phosphatase, catalase, H2S, urease, acid from
D(+) glucose, maltose, D(-) fructose(weak) & D(+) galactose  are positive.
(c) Costin Stoica
Antibiogram
Encyclopedia
Culture media
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