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Updated: Jun 10, 2026

Sexual Transmission of American Trypanosomes from Males and Females to Naive Mates
Published on: January 27, 2019
[Import and local transmission of Haemophilus ducreyi]
Troels Bygum Knudsen1, Carsten Sand, Jørgen Skov Jensen
1Dermato-Venerologisk Afdeling, Bispebjerg Hospital, 2400 København NV. tbygum@gmail.com
Abstract:
Chancroid is a sexually transmitted disease characterized by painful ulcers with a soft margin, necrotic base and purulent exudate. Previously, only sporadic, imported cases have been reported in Denmark. The bacterium is difficult to culture and novel polymerase chain reaction (PCR)-based methods for direct demonstration of bacterial DNA have facilitated rapid verification of the clinical diagnosis. We report two cases which demonstrate import and subsequent local transmission in Denmark. In both cases, the clinical diagnosis was rapidly verified by a combined PCR testing for multiple causes of venereal ulcers.
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