Haemophilus ducreyi: Difference between revisions

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*''Haemophilus ducreyi'', also known as ''H. ducreyi'', is a [[Growth medium|fastidious]], [[gram-negative]], coccobacillus that causes the [[sexually transmitted disease]] [[chancroid]], characterized as a genital ulcerative disease.<ref name="ChancroidMedscape">Chancroid in Emergency Medicine. Medscape (February 12, 2014). http://emedicine.medscape.com/article/781520-overview#showall Accessed January 12, 2016.</ref>
*''Haemophilus ducreyi'', also known as ''H. ducreyi'', is a [[Growth medium|fastidious]], [[gram-negative]], coccobacillus that causes the [[sexually transmitted disease]] [[chancroid]], characterized as a genital ulcerative disease.<ref name="ChancroidMedscape">Chancroid in Emergency Medicine. Medscape (February 12, 2014). http://emedicine.medscape.com/article/781520-overview#showall Accessed January 12, 2016.</ref>
*''H. ducreyi'' was originally classified as a ''Haemophilus'' species due to its growth requirements and antigentic relatedness to other species in the genus. However, rRNA analysis indicates ''H. ducreyi'' is not a true ''Haemophilus'' but is more closely related to the [[Pasteurellaceae]] family.<ref name="Spinola2002">{{cite journal|last1=Spinola|first1=S. M.|title=Immunopathogenesis of Haemophilus ducreyi Infection (Chancroid)|journal=Infection and Immunity|volume=70|issue=4|year=2002|pages=1667–1676|issn=00199567|doi=10.1128/IAI.70.4.1667-1676.2002}}</ref>
*''H. ducreyi'' was originally classified as a ''Haemophilus'' species due to its growth requirements and antigentic relatedness to other species in the genus. However, rRNA analysis indicates ''H. ducreyi'' is not a true ''Haemophilus'' but is more closely related to the [[Pasteurellaceae]] family.<ref name="Spinola2002">{{cite journal|last1=Spinola|first1=S. M.|title=Immunopathogenesis of Haemophilus ducreyi Infection (Chancroid)|journal=Infection and Immunity|volume=70|issue=4|year=2002|pages=1667–1676|issn=00199567|doi=10.1128/IAI.70.4.1667-1676.2002}}</ref>
*''H. ducreyi'''s genome is a single 1.7-Mb chromosome.


==Human Pathogen==
==Human Pathogen==

Revision as of 20:09, 12 January 2016

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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
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 coccobacillus causing the chancroid characterized by painful sores on the genitalia.

Organism

  • Haemophilus ducreyi, also known as H. ducreyi, is a fastidious, gram-negative, coccobacillus that causes the sexually transmitted disease chancroid, characterized as a genital ulcerative disease.[1]
  • H. ducreyi was originally classified as a Haemophilus species due to its growth requirements and antigentic relatedness to other species in the genus. However, rRNA analysis indicates H. ducreyi is not a true Haemophilus but is more closely related to the Pasteurellaceae family.[2]
  • H. ducreyi's genome is a single 1.7-Mb chromosome.

Human Pathogen

  • H. ducreyi is an obligate human pathogen.

References

  1. Chancroid in Emergency Medicine. Medscape (February 12, 2014). http://emedicine.medscape.com/article/781520-overview#showall Accessed January 12, 2016.
  2. Spinola, S. M. (2002). "Immunopathogenesis of Haemophilus ducreyi Infection (Chancroid)". Infection and Immunity. 70 (4): 1667–1676. doi:10.1128/IAI.70.4.1667-1676.2002. ISSN 0019-9567.