Haemophilus haemoglobinophilus
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pasteurellales, Family Pasteurellaceae, Genus Haemophilus,
Haemophilus  haemoglobinophilus
 (Lehmann and Neumann 1907) Murray 1939.

Historical synonyms:
Bacillus  haemoglobinophilus canis  Friedberger 1903, Bacterium haemoglobinophilus  Lehmann and
Neumann 1907,
Haemophilus canis  Rivers 1922.
Gram negative, 0.2-0.3/0.5-2.0  µm, pleomorphic rods, noncapsulated.
Colonies on chocolate agar are smooth,  convex, translucent, 1.0-2.0 mm. in diameter
in 24 hours , with a small granular area on top. Hemolysis is negative.
Aerobic, facultatively anaerobic, require X-factor but not V-factor for growth. CO
2 is not
required. Growth on Mac Conkey agar is negative.
Isolated from the preputial sac and vagina of dogs.
May belong to normal flora of the preputial sac and vagina of dogs. Probably low pathogenicity for dogs.
  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. Pozsgi N., 1985. Genul Pasteurella. In: Bacteriologie medicala, vol II, v. Bilbiie, N. Pozsgi (sub redactia), Ed. Medicala, Bucuresti,
    123-130.
  4. J. G.Holt et al., 1994. Begey’s manual of Determinative Bacteriology, 9-edition, Williams & Wilkins.
  5. 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.
Nitrates reduction, oxidase, catalase,  indole, acid production from D(+) glucose, D(+)
xylose, mannitol, D(+) mannose, maltose & sucrose (saccharose) are positive.

Alkaline phosphatase, gelatinase, urease, arginine dehydrolase, lysine
decarboxylase, ornithine decarboxylase, glycerol, xylitol, L(+) arabinose, dulcitol,
meso-inositol, D(-) sorbitol, D(-) fructose, D(+) galactose, L(+) rhamnose, L(-)
sorbose, cellobiose, D(+) melibiose, trehalose, raffinose, inulin, esculin, salicin,
alpha-glucosidase (PNPG), lactose & gas from D(+) glucose  are negative.

H
2S & ONPG reactions are variable.
(c) Costin Stoica
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