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Procedures for In Vitro Cultivation of Treponema pallidum, the Syphilis Spirochete
Published on: January 24, 2025
[Clinical presentation of syphilis]
1Cabinet de dermatologie-vénéréologie, 75013 Paris. farhidavid@yahoo.fr
Abstract:
Since the turn of the millennium, the incidence of syphilis is on the rise in France and in other developed countries. The majority of syphilis cases currently occur in men having sex with men and half of the cases occur in HIV-positive patients. Multiple partners and non protected intercourses are frequently reported. About 80% of syphilis recently diagnosed in France are symptomatic and correspond to primary or secondary syphilis. The other potential circumstances of diagnosis of syphilis include the presence of risk factors, an intercourse with an infected partner, the serological follow-up of a previous syphilis and a systematic screening during pregnancy. Clinical features are mainly represented by skin and mucosal lesions. However, extra-cutaneous involvement and biological abnormalities are quite frequent during secondary syphilis especially ophthalmic complications which are source of sequelae due to the delay for diagnosis. In the post-HAART era, it seems that clinical presentation and serological response after treatment is similar in HIV infected patients in comparison to HIV uninfected patients and that patients with early syphilis shoud be treated with one dose of benzathine penicillin G while the unique treatment for neurosyphilis is intravenous penicilline G.
Insights
Syphilis incidence is increasing, particularly among men who have sex with men and HIV-positive individuals. Early syphilis treatment involves benzathine penicillin G, while neurosyphilis requires intravenous penicillin G.
Area of Science:
- Infectious Diseases
- Public Health
- Dermatology
Context:
- Syphilis incidence has risen globally since 2000, with a significant increase in France.
- The primary demographic affected are men who have sex with men (MSM), with half of cases occurring in HIV-positive patients.
- Risk factors include multiple partners and unprotected sexual contact, with 80% of recent diagnoses being symptomatic (primary or secondary syphilis).
Purpose:
- To review the current epidemiology, clinical presentation, and treatment of syphilis in the post-HAART era.
- To highlight the importance of early diagnosis and appropriate treatment to prevent sequelae, especially ophthalmic complications.
- To provide updated treatment guidelines for early syphilis and neurosyphilis.
Summary:
- Syphilis is increasing in developed countries, predominantly in MSM and HIV-positive individuals.
- Clinical manifestations include skin and mucosal lesions, with potential for extra-cutaneous involvement, particularly in secondary syphilis.
- Treatment recommendations include a single dose of benzathine penicillin G for early syphilis and intravenous penicillin G for neurosyphilis, with similar outcomes in HIV-infected and uninfected patients.
Impact:
- Informs public health strategies for syphilis control and prevention, especially in at-risk populations.
- Guides clinicians on timely diagnosis and management of syphilis, reducing the risk of long-term complications.
- Contributes to updated treatment protocols, ensuring effective management of syphilis, including neurosyphilis.
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