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Updated: Aug 21, 2026

Procedures for In Vitro Cultivation of Treponema pallidum, the Syphilis Spirochete
Published on: January 24, 2025
[Resurgence of syphilis: a prospective study at an University Hospital, Nimes]
J P Lavigne1, I Rouanet, E Gleize
1Laboratoire de bactériologie-virologie, CHU de Nîmes, groupe hospitalo-universitaire de Carémeau, place du professeur-Robert-Debré, 30029 Nîmes cedex 09, France.
Background:
Since 2000, the incidence of syphilis has increased in France. The study objective was to estimate the frequency of syphilis in Languedoc Roussillon region in Southern France.
Method:
The prospective study was conducted between January 1, 2003 and June 30, 2003 in different medical wards in a French University Hospital, Nimes. The diseased patients in this study answered to a questionnaire, providing epidemiological and socio-economic data, symptomatology and treatment-seeking behaviour. Blood specimens were tested for syphilis by the serological methods (TPHA, VDRL, FTA).
Results:
In 6 months, serologic evidence of syphilis infection was found in 30 patients. Men were more than twice as likely as women to be infected with syphilis. Most men (64.7%) acquired the infection homosexually. Four women acquired infection during pregnancy. The mean age of study population was 46.3 years. 40.7% were married. Out of 27 cases, 70.4% cases had an associated sexually transmitted infection (HIV, hepatitis, herpes, and gonorrhoea).
Conclusions:
These data confirm the increase of syphilis in south of France and underline the importance of a permanent monitoring of sexually transmitted infection in target populations to allow a timely diagnosis and an appropriate treatment, and to plan preventive strategies.
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