H. HUNTER HANDSFIELD, M.D.; PATRICIA A. TOTTEN, M.S.; CYNTHIA L. FENNEL, B.S.; STANLEY FALKOW, M.D.; KING K. HOLMES, M.D., Ph.D.
Haemophilus ducreyi was isolated with an enriched chocolate agar containing vancomycin from seven patients with clinical evidence of chancroid. Four cases were imported from outside the United States; the other three cases were acquired in the United States from one of the imported cases. All strains of H. ducreyi contained ampicillin-resistance plasmids with molecular weights of 7.3, 5.7, or 3.6 megadaltons. Plasmid molecular weights were identical for isolates from the epidemiologically linked cases and differed according to the geographic origins of the strains. Findings of this study confirm that H. ducreyi is sexually transmitted and suggest that clinical chancroid develops frequently after acquisition of H. ducreyi.
HANDSFIELD HH, TOTTEN PA, FENNEL CL, FALKOW S, HOLMES KK. Molecular Epidemiology of Haemophilus ducreyi Infections. Ann Intern Med. 1981;95:315–318. doi: 10.7326/0003-4819-95-3-315
Download citation file:
Published: Ann Intern Med. 1981;95(3):315-318.
Results provided by:
Copyright © 2019 American College of Physicians. All Rights Reserved.
Print ISSN: 0003-4819 | Online ISSN: 1539-3704
Conditions of Use