Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content


Description:This photomicrograph revealed the presence of Gram-negative Haemophilus ducreyi bacteria, which had been extracted from a culture, and had formed observable strands of streptobacilli.
H. ducreyi causes chancroid, a highly contagious sexually transmitted disease that begins with the formation of painful open sores on the genitals.
High Resolution: Click here for hi-resolution image (13.55 MB)
Content Providers(s):CDC/ Susan Lindsley
Creation Date:1977
Photo Credit:
Links:National Center for Biotechnology Information, U.S. National Library of Medicine - Alfa, M. 2005, “The laboratory diagnosis of Haemophilus ducreyi. Can. J. Infect. Dis. Med. Microbiol. 16:31–34
CDC - Division of AIDS, STD, and TB Research, Division of Sexually Transmitted Diseases
CDC Organization
Skip Navigation Links.

Skip Navigation Links.
Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.