Haemophilus ducreyi

Haemophilus 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

	Chancroid Microchapters
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This page is about microbiologic aspects of the organism(s). For clinical aspects of the disease, see Chancroid.

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Yazan Daaboul, M.D.; Nate Michalak, B.A.; Serge Korjian M.D.

Overview

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