PROTEOBACTERIA >> Gamma >> Haemophilus >> Haemophilus aegyptius
HAEMOPHILUS AEGYPTIUS
| Class: | Gamma Proteobacteria |
| Genus: | Haemophilus |
| Species: | Haemophilus aegyptius |
| Description: | Gram negative, 0.2-0.3 / 2.0-3.0 μm, piliated, long slender rods, nonmotile,nonsporeforming. Capsules have not been demonstrated.Growth of freshly isolated strains on chocolate agar is slow; colonies are smooth,low, convex, grayish, translucent, 0.5 mm in diameter in 48h. Forms comet-like colonies in semisolid agar media. Hemolysis is negative. |
| Synonyms: | Bacillus aegyptius Trevisan 1889, "Bacillus conjunctivitidis" Kruse 1896, "Bacterium conjunctivitis" (sic) Chester 1897, "Bacterium pseudo conjunctivitidis" (Kruse 1896) Chester 1897, "Bacterium aegyptiacum" Lehmann and Neumann 1899, "Hemophilus conjunctivitidis" (sic) (Kruse 1896) Bergey et al. 1923, common name: Koch-Weeks bacillus. |
| Source: | Humans are the only natural host . |
| Pathogenicity: | Causes acute or subacute infectious conjunctivitis in hot climates. It has not been demonstrated in healthy individuals. |
| Genbank: | [Genome] [Nucleotide] |
| Size (Mb): | 1.85 |
| GC %: | 38.1 |
| Genes: | 1,847 |
| CDS Number: | 1,794 |
| Reference: | 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,,Margaret Pittman & Dorland J. Davis: IDENTIFICATION OF THE KOCH-WEEKS BACILLUS (HEMOPHILUS AEGYPTIUS). J. Bacteriol. 59 (3): 413. |
| Biochemical Tests: |