Reemergencia de la sífilis infecciosa en varones homosexuales y coinfección por el virus de la inmunodeficiencia humana en Barcelona, 2002-2003

The Epidemiological and Clinical Characteristics of the Epidemic of Syphilis in Barcelona

BACKGROUND

Since 2000, substantial increases in syphilis have been reported in metropolitan areas of Western countries, with increases noted among men who have sex with men (MSM). Clinical manifestations of syphilis might be influenced by concomitant VIH infection and previous episodes of syphilis. The objectives of this study were to describe the epidemiological and clinical characteristics of the cases of syphilis diagnosed in Barcelona.

METHODS

Retrospective study of cases with early syphilis diagnosed in the referral STI Unit of Barcelona from January 2003 to December 2013. Revision of medical records with structured collection of epidemiological and clinical data. Univariate and multivariate statistical analyses comparing the characteristics of MSM cases with and without VIH infection and with and without previous syphilis.

RESULTS

A total of 1702 cases of syphilis (37% primary, 48% secondary and 14% early latent) were diagnosed, 93% of them in MSM. Among MSM 40% were coinfected with VIH, VIH-positive cases were associated with a previous syphilis (aOR, 5.2 [95% CI, 3.32-8.24]) and with unprotected anal intercourse (aOR, 1.75 [95%CI, 1.17-2.63]). Cases with a history of syphilis presented less often with primary syphilis compared to those without it (27.5% vs. 40%) (aOR, 0.58 [95% CI, 0.44-0.77]). One year after treatment, the clinical and serological evolution were similar between VIH-positive and VIH-negative cases.

CONCLUSION

The epidemic of syphilis in Barcelona disproportionately affects MSM and is closelly linked to VIH infection. The presentation of syphilis is influenced by VIH infection and by previous history of syphilis, without significant differences in their evolution after one year of treatment.

Sexual orientation and its impact on sexual behaviour of young people aged 15-29: a cross-sectional study

AIMS

The aim of this study was to determine whether there was a direct relation between sexual orientation and sexual practices involving penetration; to analyse whether condom use in the first sexual relation was conditioned by sexual orientation; to verify whether consistent condom use in sexual relations was determined by sexual orientation.

BACKGROUND

Recent research suggests that sexual orientation (i.e. heterosexuality, homosexuality or bisexuality) is a determining factor in high-risk sexual behaviour.

DESIGN

A cross-sectional study with purposive sampling.

METHODS

Data were collected between March 2013-April 2014 from 900 participants (524 males and 376 females). All participants were 15-29 years of age. Their mean age was 20·93 years. The participants were given a socio-demographic survey as well as a psychometric test on high-risk sexual behaviour, which had been used in previous studies.

RESULTS

There were no statistically significant differences in relation to sexual orientation and sexual practices involving penetration either in the general model for both sexes or in the models for men and women. It was also found that sexual orientation did not significantly affect condom use in the first sexual relation. Furthermore, consistent condom use had a protector effect in the general model for homosexuals and bisexuals. In the model for men, this was also true for homosexuals and in the model for women, this was the case for bisexuals.

CONCLUSION

Condom use in the first sexual relation was similar in all sexual orientations. However, the sexual orientation of the subject was found to be a determining factor in consistent condom use.

Sexually Transmitted Infections: Experience in a Multidisciplinary Clinic in a Tertiary Hospital (2010-2013)

INTRODUCTION

The number of consultations for sexually transmitted infections (STIs) is increasing in Spain. The aim of this study was to describe and analyze the epidemiological, behavioral, clinical, and microbiological characteristics of patients registered at the STI unit of a tertiary hospital.

METHODS

This was a retrospective, single-center descriptive study carried out between 2010 and 2013 in a multidisciplinary unit specialized in STIs, situated in a tertiary hospital. Epidemiological, clinical, and behavioral data were gathered using a face-to-face interview and a standardized questionnaire. Samples were collected for microbiology analysis.

RESULTS

The study included 546 patients: 96% were men, 41% had human immunodeficiency virus (HIV) infection, and 56% were men who have sex with men. The reasons for consultation were the following: urethritis; genital, anal, or perianal ulcers; proctitis; oral ulcers; sexual contact with a person with a known STI; and high-risk sexual contact. The most common microbiological diagnoses were Neisseria gonorrhoeae in urethritis, Treponema pallidum in genital and anal or perianal ulcers, and Chlamydia trachomatis lymphogranuloma venereum serovars in proctitis. The highest prevalences of the main STIs studied occurred in homosexual men with HIV infection.

CONCLUSION

This study confirms the increase in the incidence of STIs in recent years and the epidemiological characteristics of the HIV/STI epidemic in Spain.

Syphilis in Men Who Have Sex With Men: A Warning Sign for HIV Infection

OBJECTIVE

To describe the clinical and epidemiological characteristics of syphilis in men who have sex with men (MSM) in an area of Mallorca, Spain.

METHODS

We performed a retrospective analysis of syphilis cases in MSM seen at a hospital in Mallorca between January 2005 and June 2013.

RESULTS

Fifty-five cases of syphilis were recorded in MSM during the study period (34.3% of all cases diagnosed), and 74.5% of these patients had human immunodeficiency virus (HIV) coinfection. The two diseases had been diagnosed simultaneously in 70.7% of this population. Patients with HIV coinfection had a median CD4 count of 456cells/μL (range, 29-979 cells/μL). Syphilis was diagnosed clinically in 49.1% of cases and by screening in the remaining 50.9%. The most common form of syphilis was late latent or indeterminate syphilis (41.9% of cases). In the group of men with syphilis, MSM had a higher risk of HIV infection.

CONCLUSIONS

A majority of MSM with syphilis had HIV coinfection. HIV screening is therefore essential in this population and could even result in early diagnosis.

A low-cost, sustainable, second generation system for surveillance of people living with HIV in Spain: 10-year trends in behavioural and clinical indicators, 2002 to 2011

A second-generation surveillance system of people infected with human immunodeficiency virus (HIV) has been implemented in Spain. Behavioural and clinical data were collected between 2002 and 2011 through an annual one-day, cross-sectional survey in public hospitals, including all in- and outpatients receiving HIVrelated care on the survey day. Mean age increased over time (from 38.7 years in 2002 to 43.8 years in 2011) and 68.4% of the 7,205 subjects were male. The proportion of migrants increased from 6.1% to 15.9%, while people who inject or used to inject drugs (PWID and Ex-PWID) decreased and men who have sex with men (MSM) and heterosexuals increased. Unprotected intercourse at last sex increased among MSM and PWID/Ex-PWID. Patients receiving antiretroviral treatment increased significantly from 76.0% to 88.2% as did those with CD4 T-cell counts ≥350 (from 48.2% to 66.9%) and viral copies <200 (from 47.0% to 85.2%). HIV-infected people with hepatitis C virus RNA decreased from 36.0% in 2004 to 29.9% in 2011, while those with HBsAg remained stable at around 4.4%. Implementation of a low-cost, sustainable system for second-generation surveillance in people living with HIV is feasible. In Spain, the information obtained has helped to define and refine public health policy and document treatment effectiveness.

Increased syphilis trend among patients in an AIDS information and prevention center

OBJECTIVE

A rebound of syphilis cases has recently been observed. This study describes the trend in syphilis infection among persons attending the AIDS information and prevention center of Valencia, Spain.

METHODS

We performed a cohort study of all persons attended from 2000 to 2006. The calendar effect was assessed by a logistic regression model adjusted by sexual and sociodemographic variables.

RESULTS

A total of 71% were heterosexuals (HT) and 19% were men who had sex with men (MSM). Among the 10,850 users of the center, the prevalence of syphilis was 0.7%. Among MSM, the prevalence of syphilis was 2.4% for the whole period and was 4.6% for 2006. Multivariate analysis showed that the risk of infection was lower in persons with a university education (OR=0.10; 95%CI: 0.03-0.59) than in those without. The risk was higher in persons who took drugs (OR=5.49; 95%CI: 1.55-19.43) or who practiced prostitution (OR=6.83; 95%CI: 2.52-18.53). In 2006, the risk of having syphilis was greater (OR=5.05; 95%CI: 1.12-22.72).

CONCLUSIONS

Syphilis infection increased substantially among MSM. In this collective, the prevalence of infection is related to educational level, prostitution and the use of non-injected recreational drugs.

[Preventive intervention in venues for interaction used by men who have sex with men]

An intervention in venues for interaction used by men who have sex with men in Valencia (Spain) was performed to prevent human immunodeficiency virus (HIV) infection or avoid delay in diagnosis and to facilitate contact with the health circuit. Information was provided on prevention and a rapid test for HIV and syphilis was performed. We contacted 500 men and the intervention was performed in 171; 37% of the subjects in saunas and one in four of those in prostitution apartments had never been tested. The prevalence of HIV was 1.6% (n=2) in the saunas, and 11% (n=5) in the apartments (n=5). For syphilis, these percentages were 5% and 2.3% respectively. The intervention revealed the existence of highly exposed population groups with low compliance and facilitated access to the health system in these groups.

[Diagnostic resources for sexually transmitted infections in laboratories in Catalonia (Spain)]

OBJECTIVE

With the aim of describing both the capacity and organization of the laboratories in Catalonia to diagnose sexually transmitted infections, a cross-sectional study was performed between November 2005 and March 2006, which included 140 laboratories.

RESULTS

Ninety-eight laboratories performed some STI tests, 45 received more than 50 vaginal swabs per month, 42 diagnosed Chlamydia trachomatis, but only six used polymerase chain reaction techniques. None diagnosed venereal lymphogranuloma. Eighty were able to detect Neisseria gonorrhoeae, 76 by means of culture and 63 analyzed its antibiotic resistance. A total of 23, 22, 22 and 14 laboratories received more than 500 blood samples for hepatitis B, hepatitis C, HIV and syphilis, respectively. Non-treponemic and treponemic tests were available in 84 and 52 laboratories, respectively.

CONCLUSIONS

In Catalonia, most STIs can be diagnosed but new technologies need to be introduced. Moreover, the efficiency of biological sample circuits should be improved.

Need for syphilis screening and counselling in HIV counselling and testing centres: a curtain raiser study from north India

BACKGROUND

Voluntary counselling and testing centres (VCTC) are important HIV screening points for the population with suspicion or apprehension for HIV, because of high-risk exposures. Theoretically, these are also at the risk of having co-infections, commonest being syphilis. The present short-term study was aimed at knowing the sero-reactivity of syphilis among a study cohort attending the VCTC in King George's Medical University, Lucknow, India.

METHOD

During a 2.5-month period, 49 HIV-positive and 171 HIV-negative sera were tested for venereal disease research laboratory (VDRL). The positive sera were further tested for treponema pallidum haemagglutination (TPHA).

RESULT

Eleven (22.4%) HIV-positive sera and 104 (60.8%) HIV-negative sera were VDRL-reactive (>or=1:8 dilutions). Of these, TPHA was reactive in three (27.3%) and four (3.9%), respectively.

CONCLUSION

The result might suggest the need for routine screening and counselling for syphilis at VCTC. Studies from other centres on larger population are required.

Profile of blood donors with serologic tests reactive for the presence of syphilis in São Paulo, Brazil

BACKGROUND

Syphilis screening of blood donors is a common practice worldwide, but very little is known about the meaning of a positive serologic test for syphilis in blood donors and the risk profile of these donors. The aim of this study was to determine the demographic characteristics and risk behaviors of blood donors with recent and past syphilis and their implications for blood bank testing and deferral strategies.

STUDY DESIGN AND METHODS

Demographic characteristics, category of donation, number of previous donations, sexual behavior, and history of sexually transmitted diseases were reviewed comparing blood donors with recent and past syphilis from January 1, 1999, to December 31, 2003.

RESULTS

A total of 2439 interviews were reviewed, including 2161 (88.6%) donors with past and 278 (11.4%) with recent syphilis infection. Factors associated with recent infection included younger age (< or = 20 years odds ratio [OR], 36.5; 95% confidence interval [CI], 15.8-84.1), two previous donations (OR, 2.7; 95% CI, 1.9-3.9), male-male sex (homosexual OR, 8.2; 95% CI, 3.2-20.8; and bisexual OR, 11.4; 95% CI, 3.6-36.3), two or more partners in the past 12 months (OR, 2.3; 95% CI, 1.3-4.0), symptoms for syphilis (OR, 4.5; 95% CI, 2.8-7.1), and human immunodeficiency virus (HIV) seropositivity (OR, 39.6; 95% CI, 4.6-339.8). Community donors were also associated with recent syphilis infection (OR, 1.5; 95% CI, 1.2-1.9) compared to replacement donors.

CONCLUSION

Sexual history, including male-male sex and multiple partners, were strongly associated with recent syphilis infection, which in turn was strongly associated with HIV. Continuous and vigilant surveillance that includes assessing sexual history and other factors associated with syphilis are needed to guide blood safety policies.

Impact of Syphilis Infection on HIV Viral Load and CD4 Cell Counts in HIV-Infected Patients

OBJECTIVES

To assess the effect of early syphilis on HIV viral load (VL) and CD4 cell count in patients with HIV and to analyze factors associated with changes in HIV VL and CD4 cell count.

DESIGN

Multicenter study of a series of patients with HIV who were diagnosed with early syphilis infection during 2004 through 2005. Patients who started or changed their highly active antiretroviral therapy (HAART) regimen during the analysis period were excluded.

RESULTS

One hundred eighteen patients were analyzed: 95.8% were men, mean patient age was 38.2 years, 83.9% were homosexual men, 50.8% were on antiretroviral therapy at the time syphilis was diagnosed, and HIV and syphilis diagnoses were coincident in 38 (32.2%) cases. CD4 cell counts were lower during syphilis than before (590 vs. 496 cells/microL; P = 0.0001) and after syphilis treatment (509 vs. 597 cells/microL; P = 0.0001). The HIV VL increased in 27.6% of patients during syphilis. The only factor associated with an HIV VL increase was not being on HAART, and the only factor associated with a CD4 count decrease >100 cells/microL during syphilis was the prior CD4 cell count.

CONCLUSIONS

Syphilis infection was associated with a decrease in the CD4 cell count and an increase in the HIV VL in almost one third of the patients. In this series, more than two thirds of the syphilis cases were diagnosed in patients who were previously known to be infected with HIV.