|
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Proteobacteria => Gammaproteobacteria => Pasteurellales => Pasteurellaceae => Haemophilus => Haemophilus parasuis
Biberstein and White 1969; four serovars (A-D, based on capsular polysaccharides) or 15 serovars (1-15, based on heat-stable
antigen extracts).
Biberstein and White 1969; four serovars (A-D, based on capsular polysaccharides) or 15 serovars (1-15, based on heat-stable
antigen extracts).
Gram negative, pleomorphic rods, variable length, some strains form capsule.
Growth of freshly isolated strains on chocolate agar is very feeble after 2-3 days.
Colonies are smooth, grayish, translucent, small (0.5 mm in diameter) to 1-2 mm
around. Hemolysis is negative.
Require V-factor but no X-factor or CO2 for growth. Optimum temperature 37 °C.
Growth on Mac Conkey agar is negative.
Colonies are smooth, grayish, translucent, small (0.5 mm in diameter) to 1-2 mm
around. Hemolysis is negative.
Require V-factor but no X-factor or CO2 for growth. Optimum temperature 37 °C.
Growth on Mac Conkey agar is negative.
Member of the normal flora of the upper respiratory tract of swine.
Causes respiratory tract infections and polyserositis in pigs (Glässer’s disease).
Frequently may be isolated from nasal cavity, tonsils and upper trachea from healthy pigs.
Frequently may be isolated from nasal cavity, tonsils and upper trachea from healthy pigs.
- 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. - Mary P.E. Slack, 2006.Haemophilus. In: Topley & Wilson’s Microbiology and Microbial Infections, 10 edition, Vol. 2,
Bacteriology, Edward Arnold Ltd. - J. G. Holt et al., 1994.Begey’s manual of Determinative Bacteriology, 9-edition, Williams & Wilkins.
- Ionut Sorescu: Actualităţi privind infecţia cu Haemophilus parasuis. Buletin informativ in patologia porcina, vol. 6 nr. 1, 30-37.
- Costin Stoica: Species of Actinobacillus & Haemophilus with clinical significance for swine. Buletin informativ in patologie
porcina, vol. VI, nr. 1, 26-29, 2003.
Positive results for nitrates reduction, alkaline phosphatase, catalase, acid from D(+)
glucose, D(-) fructose, D(+) galactose, D(+) mannose, maltose, sucrose
(saccharose) & inulin.
H2S, lactose, meso-inositol & α-glucosidase (PNPG) are variable.
Negative results for oxidase, urease, arginine dehydrolase, lysine decarboxylase,
ornithine decarboxylase, indole, glycerol, xylitol, L(+) arabinose, D(+) xylose, dulcitol,
mannitol, D(-) sorbitol, L(+) rhamnose, L(-) sorbose, cellobiose, ONPG, D(+)
melibiose, trehalose, raffinose, esculin, salicin & gas production from D(+) glucose.
glucose, D(-) fructose, D(+) galactose, D(+) mannose, maltose, sucrose
(saccharose) & inulin.
H2S, lactose, meso-inositol & α-glucosidase (PNPG) are variable.
Negative results for oxidase, urease, arginine dehydrolase, lysine decarboxylase,
ornithine decarboxylase, indole, glycerol, xylitol, L(+) arabinose, D(+) xylose, dulcitol,
mannitol, D(-) sorbitol, L(+) rhamnose, L(-) sorbose, cellobiose, ONPG, D(+)
melibiose, trehalose, raffinose, esculin, salicin & gas production from D(+) glucose.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
