Which of the following is the causative organism for Chancroid?
Haemophilus ducreyi, a gram-negative, facultative anaerobic coccobacillus is the causative agent of Chancroid. Painful, soft ulcers with ragged undermined margins develop 1-2 weeks after inoculation (usually seen in prepuce and frenulum in men and vulva, cervix, and perianal area in women). Must Know: Chancroid facilitates the transmission of HIV. Azithromycin and Ceftriaxone are recommended as single-dose treatment. It is a sexually transmitted disease, but nonsexual transmission has been repoed recently. Ref: Lautenschlager S. (2012). Chapter 202. Chancroid. In L.A. Goldsmith, S.I. Katz, B.A. Gilchrest, A.S. Paller, D.J. Leffell, N.A. Dallas (Eds), Fitzpatrick's Dermatology in General Medicine, 8e.
Haemophilus ducreyi
Haemophilus influenza
Treponema pallidum
Neisseria Gonorrhea