{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,7,4]],"date-time":"2022-07-04T20:40:29Z","timestamp":1656967229906},"reference-count":33,"publisher":"Cambridge University Press (CUP)","issue":"5","license":[{"start":{"date-parts":[[2015,1,2]],"date-time":"2015-01-02T00:00:00Z","timestamp":1420156800000},"content-version":"unspecified","delay-in-days":10838,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Infect. Control"],"published-print":{"date-parts":[[1985,5]]},"abstract":"<jats:p>Chancroid, or soft chancre (ulcus molle), was first differentiated from syphilis by Bassereau in 1852. The causative organism,<jats:italic>Haemophilus ducreyi<\/jats:italic>, was first described by Ducrey in 1889, although he was unable to grow the organism in vitro. The first successful culture has been attributed to Petersen (1895).<jats:italic>Haemophilus ducreyi<\/jats:italic>has been clinically associated only with genital ulcer disease and direct inoculation infections. There is no difficulty accepting<jats:italic>Haemophilus ducreyi<\/jats:italic>as a legitimate clinical and taxonomic species because it is the sole human<jats:italic>Haemophilus<\/jats:italic>species with a requirement only for X factor as determined by the porphyrin test. The emergence of<jats:italic>Haemophilus ducreyi<\/jats:italic>strains resistant to multiple antibiotics has restricted efforts to curb the spread of this increasingly prevalent sexually transmitted disease.<\/jats:p>","DOI":"10.1017\/s0195941700061439","type":"journal-article","created":{"date-parts":[[2016,8,3]],"date-time":"2016-08-03T04:54:56Z","timestamp":1470200096000},"page":"203-205","source":"Crossref","is-referenced-by-count":0,"title":["<i>Haemophilus ducreyi<\/i>"],"prefix":"10.1017","volume":"6","author":[{"given":"Judy 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