title: [Syphilis and human immunodeficiency virus infection: an endemic infection in men who have sex with men].
abstract: OBJECTIVE
  to analyse epidemiological, clinical, and analytical features of HIV-infected men who have sex with men (MSM) diagnosed with syphilis in the Infectious Diseases Unit (Hospital Virgen de la Victoria, Málaga, Spain) during 2004-2013.
  
  
  METHODS
  An observational study was conducted on 196 syphilis episodes in 167 MSM infected with HIV (2004-2013). Epidemiological, clinical, and analytical data were collected. Annual syphilis incidence among HIV-MSM is calculated as the number of syphilis episodes among MSM in one year divided by the number of MSM followed up in that year.
  
  
  RESULTS
  Incidence ranged from 1.2% (2007) to 7.8% (2012). There were asymptomatic episodes in 42.8% cases, and an HIV-syphilis coincident diagnosis in 28.5%.
  
  
  CONCLUSIONS
  The annual incidence of syphilis has increased within HIV infected MSM. One third of the syphilis episodes were simultaneous to HIV diagnosis and near half of them were asymptomatic.
authors.affiliation: Unidad de Gestión Clínica de Enfermedades Infecciosas y Microbiología Clínica, Hospital Virgen de la Victoria, Málaga, España.
authors.forename: Carmen M
authors.initials: CM
authors.lastname: González-Domenech
authors.affiliation: Unidad de Gestión Clínica de Medicina Interna, Hospital Virgen de la Victoria, Málaga, España.
authors.forename: Isabel
authors.initials: I
authors.lastname: Antequera Martín-Portugués
authors.affiliation: Unidad de Gestión Clínica de Enfermedades Infecciosas y Microbiología Clínica, Hospital Virgen de la Victoria, Málaga, España.
authors.forename: Encarnación
authors.initials: E
authors.lastname: Clavijo-Frutos
authors.affiliation: Unidad de Gestión Clínica de Enfermedades Infecciosas y Microbiología Clínica, Hospital Virgen de la Victoria, Málaga, España; Instituto de investigación biomédica de Málaga (IBIMA), España.
authors.forename: Manuel
authors.initials: M
authors.lastname: Márquez-Solero
authors.affiliation: Unidad de Gestión Clínica de Enfermedades Infecciosas y Microbiología Clínica, Hospital Virgen de la Victoria, Málaga, España; Instituto de investigación biomédica de Málaga (IBIMA), España.
authors.forename: Jesús
authors.initials: J
authors.lastname: Santos-González
authors.affiliation: Unidad de Gestión Clínica de Enfermedades Infecciosas y Microbiología Clínica, Hospital Virgen de la Victoria, Málaga, España; Instituto de investigación biomédica de Málaga (IBIMA), España. Electronic address: rosariopalaci@gmail.com.
authors.forename: Rosario
authors.initials: R
authors.lastname: Palacios-Muñoz
mesh_terms: D000328:Adult; D058070:Asymptomatic Diseases; D015897:Comorbidity; D019353:Endemic Diseases; D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D018451:Homosexuality, Male; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D013587:Syphilis / Q000453:epidemiology* / Q000635:transmission; D047568:Unsafe Sex
keywords: Epidemiology; Epidemiología; Hombres que tienen sexo con hombres; Human immunodeficiency virus; Infecciones de transmisión sexual; Men who have sex with men; Sexually-transmitted infections; Syphilis; Sífilis; Treponema pallidum; Virus de la inmunodeficiencia humana