Haemophilus ducreyi

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Haemophilus ducreyi
Photomicrograph of H. ducreyi
Photomicrograph of H. ducreyi
Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Gamma Proteobacteria
Order: Pasteurellales
Family: Pasteurellaceae
Genus: Haemophilus
Species: H. ducreyi
Binomial name
Haemophilus ducreyi
(Neveu-Lemaire 1921)
Bergey et al. 1923

Haemophilus ducreyi is a fastidious Gram-negative streptobacillus causing the sexually transmitted disease chancroid characterized by painful sores on the genitalia.