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1.
BMC Public Health ; 22(1): 2412, 2022 12 22.
Artículo en Inglés | MEDLINE | ID: mdl-36550432

RESUMEN

BACKGROUND: Little is known about transactional sex (TS) (selling and buying sex) among men who have sex with men (MSM) in Sweden, especially among foreign-born MSM. This study aims to assess the prevalence and risk factors of TS (ever and in the previous five years) among MSM living in Sweden and to determine if there is a difference between Swedish-born MSM and foreign-born MSM. METHODS: Swedish data from a multicountry online banner survey (EMIS-2017) was used (n = 4443). Multivariable regression analysis was applied to analyse the data. RESULTS: The prevalence of ever-selling sex among all MSM participants was 13.2% and 5.9% in the previous five years. Selling sex ever and in the previous five years was higher among foreign-born MSM (16% and 8.4%, respectively) than Swedish-born MSM (12.7% and 5.4%, respectively). Among all participants, younger age (aOR:3.19, 95% CI:1.57-6.45) and really struggling to live on current income (aOR:3.37, 95% CI:2.29-4.96) increased the odds of selling sex. Being foreign-born MSM (aOR:1.33, 95% CI:1.02-1.73) and having had sex with a woman in the previous 12 months increased the odds of selling sex (aOR:1.44, 95% CI:1.00-2.07). The prevalence of ever buying sex among MSM participants in Sweden was 10.8% and 6.7% in the previous five years, with the same trend among foreign-born MSM (11.6% and 6.9%, respectively) and Swedish-born MSM (10.7% and 6.6%, respectively). Higher education and not having a current partner increased the odds of buying sex. Younger age was protective for buying sex (aOR:0.05, 95% CI:0.02-0.14). Among the foreign-born MSM, the length of stay in Sweden decreased the odds of buying sex (aOR: 0.98, 95% CI: 0.96-0.99). CONCLUSIONS: The comparatively high prevalence of TS among MSM participants in Sweden, where buying sex is illegal, with a higher prevalence among foreign-born MSM participants, calls for sexual and reproductive health and rights interventions in this population. Increased attention, including HIV prevention programming and education, should be aimed at younger MSM, MSM struggling with their current income, and foreign-born MSM, as they are more likely to report selling sex.


Asunto(s)
Infecciones por VIH , Minorías Sexuales y de Género , Masculino , Femenino , Humanos , Homosexualidad Masculina , Suecia/epidemiología , Infecciones por VIH/epidemiología , Prevalencia , Factores de Riesgo
2.
BMC Infect Dis ; 17(1): 730, 2017 11 25.
Artículo en Inglés | MEDLINE | ID: mdl-29178847

RESUMEN

BACKGROUND: Knowledge of HIV status can be important in reducing the risk of HIV exposure. In a European sample of men-who-have-sex-with-men (MSM), we aimed to identify factors associated with HIV serostatus disclosure to the most recent anal intercourse (AI) partner. We also aimed to describe the impact of HIV serostatus disclosure on HIV exposure risks. METHODS: During 2013 and 2014, 4901 participants were recruited for the bio-behavioural Sialon-II study in 13 European cities. Behavioural data were collected with a self-administered paper questionnaire. Biological specimens were tested for HIV antibodies. Factors associated with HIV serostatus disclosure with the most recent AI partner were examined using bivariate and multilevel multivariate logistic regression analysis. We also describe the role of serostatus disclosure for HIV exposure of the most recent AI partner. RESULTS: Thirty-five percent (n = 1450) of the study participants reported mutual serostatus disclosure with their most recent AI partner or disclosed having HIV to their partner. Most of these disclosures occurred between steady partners (74%, n = 1077). In addition to the type of partner and HIV diagnosis status, other factors positively associated with HIV serostatus disclosure in the multilevel multivariate logistic regression model were recent testing, no condom use, and outness regarding sexual orientation. Disclosure rates were lowest in three south-eastern European cities. Following condom use (51%, n = 2099), HIV serostatus disclosure (20%, n = 807) was the second most common prevention approach with the most recent AI partner, usually resulting in serosorting. A potential HIV exposure risk for the partner was reported by 26% (111/432) of HIV antibody positive study participants. In 18% (20/111) of exposure episodes, an incorrect HIV serostatus was unknowingly communicated. Partner exposures were equally distributed between steady and non-steady partners. CONCLUSIONS: The probability of HIV exposure through condomless AI is substantially lower after serostatus disclosure compared to non-disclosure. Incorrect knowledge of one's HIV status contributes to a large proportion of HIV exposures amongst European MSM. Maintaining or improving condom use for anal intercourse with non-steady partners, frequent testing to update HIV serostatus awareness, and increased serostatus disclosure particularly between steady partners are confirmed as key aspects for reducing HIV exposures amongst European MSM.


Asunto(s)
Infecciones por VIH , Seropositividad para VIH , Homosexualidad Masculina/psicología , Parejas Sexuales/psicología , Adulto , Ciudades , Revelación , Europa (Continente) , Anticuerpos Anti-VIH/sangre , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Seropositividad para VIH/psicología , Homosexualidad Masculina/estadística & datos numéricos , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Sexo Seguro , Conducta Sexual/estadística & datos numéricos , Encuestas y Cuestionarios
3.
Harm Reduct J ; 14(1): 57, 2017 08 16.
Artículo en Inglés | MEDLINE | ID: mdl-28814336

RESUMEN

BACKGROUND: People who inject drugs (PWID) frequently engage in injection risk behaviours exposing them to blood-borne infections. Understanding the underlying causes that drive various types and levels of risk behaviours is important to better target preventive interventions. METHODS: A total of 2150 PWID in Swedish remand prisons were interviewed between 2002 and 2012. Questions on socio-demographic and drug-related variables were asked in relation to the following outcomes: Having shared injection drug solution and having lent out or having received already used drug injection equipment within a 12 month recall period. RESULTS: Women shared solutions more than men (odds ratio (OR) 1.51, 95% confidence interval (CI) 1.03; 2.21). Those who had begun to inject drugs before age 17 had a higher risk (OR 1.43, 95% CI 0.99; 2.08) of having received used equipment compared to 17-19 year olds. Amphetamine-injectors shared solutions more than those injecting heroin (OR 2.43, 95% CI 1.64; 3.62). A housing contract lowered the risk of unsafe injection by 37-59% compared to being homeless. CONCLUSIONS: Women, early drug debut, amphetamine users and homeless people had a significantly higher level of injection risk behaviour and need special attention and tailored prevention to successfully combat hepatitis C and HIV transmission among PWID. TRIAL REGISTRATION: ClinicalTrials.gov Identifier, NCT02234167.


Asunto(s)
Consumidores de Drogas/psicología , Asunción de Riesgos , Abuso de Sustancias por Vía Intravenosa/psicología , Adolescente , Adulto , Factores de Edad , Edad de Inicio , Trastornos Relacionados con Anfetaminas/psicología , Femenino , Infecciones por VIH/prevención & control , Hepatitis C/prevención & control , Dependencia de Heroína/psicología , Personas con Mala Vivienda , Humanos , Masculino , Compartición de Agujas , Prisiones , Factores Sexuales , Factores Socioeconómicos , Suecia , Adulto Joven
4.
Cult Health Sex ; 18(6): 639-53, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26569463

RESUMEN

This study aimed to identify sub-groups of men who have sex with men at high risk of HIV infection. Data from the Swedish MSM2013 survey were analysed with a focus on respondents (n = 714) who reported having had unprotected anal intercourse with male casual partner(s) in the past 12 months. Weighted Latent Class Analysis with covariates and distal outcomes was conducted to identify sub-groups of men sharing the same sexual practice characteristics. Four latent classes emerged: experimentals, bottoms, risk-reducers and clubbers. Experimentals appeared to differ most from the other classes. They had extensive experience of barebacking, the use of poppers and fisting. Higher number of casual male sex partners and reporting having HIV were predictors for belonging to experimentals. No evidence for an association between self-rated HIV prevention knowledge and taking less part in risky practices was found. Hence, knowledge-intensive interventions may not be the best fit for reducing HIV transmission. This diversity of men based on similar sexual practice patterns should be taken into account when designing future HIV prevention interventions.


Asunto(s)
Bisexualidad/estadística & datos numéricos , Infecciones por VIH/epidemiología , Conocimientos, Actitudes y Práctica en Salud , Homosexualidad Masculina/estadística & datos numéricos , Internet , Asunción de Riesgos , Sexo Inseguro/estadística & datos numéricos , Adolescente , Adulto , Estudios Transversales , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Riesgo , Conducta Sexual/estadística & datos numéricos , Encuestas y Cuestionarios , Suecia/epidemiología , Adulto Joven
5.
J Clin Nurs ; 25(23-24): 3605-3618, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27135281

RESUMEN

AIMS AND OBJECTIVES: To explore motivators and barriers to HIV testing and to assess the factors associated with testing among men who have sex with men. BACKGROUND: Previous research has considered fear, worries and structural barriers as hindrances to HIV testing among men who have sex with men. However, few studies have included assessments of actual HIV testing when exploring barriers or motivators for such testing. DESIGN: The design of the study was a stratified cross-sectional online survey (n = 2373). METHOD: Factor analysis was conducted to analyse the barriers and motivators for HIV testing. Logistic regression analysis was conducted to assess predictors for HIV testing. RESULTS: Many men who have sex with men test for HIV regularly, and specific reasons for testing were having unprotected sex or starting/ending a relationship. A lack of awareness and a perception of being at low risk for exposure were common reasons for never being tested. Fear and anxiety as well as barriers related to the use of test services remain important hindrances for testing. Predictors associated with having been tested within the past 12 months were: younger age (15-25 years old compared with 47+); knowledge on where to take an HIV test on short notice as well as having talked with a counsellor, having received condoms for free, or having had unprotected anal intercourse with casual partners within the last 12 months. CONCLUSION: Easily accessible test services offering testing and counselling on short notice should be available for all men who have sex with men. Outreach activities, distribution of free condoms and testing at venues where men who have sex with men meet are important prevention add-ons that can contribute to increased awareness about HIV and testing. RELEVANCE TO CLINICAL PRACTICE: Test services must ensure confidentiality and health care professionals who meet men who have sex with men for testing need competency with regards to men who have sex with men sexual health needs.


Asunto(s)
Infecciones por VIH/diagnóstico , Accesibilidad a los Servicios de Salud , Homosexualidad Masculina/psicología , Motivación , Adolescente , Adulto , Ansiedad , Condones/estadística & datos numéricos , Estudios Transversales , Infecciones por VIH/prevención & control , Infecciones por VIH/psicología , Humanos , Masculino , Tamizaje Masivo/estadística & datos numéricos , Persona de Mediana Edad , Parejas Sexuales , Suecia , Adulto Joven
6.
Scand J Infect Dis ; 46(12): 862-7, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25290584

RESUMEN

BACKGROUND: Early diagnosis of HIV is important for the prognosis of individual patients, because antiretroviral treatment can be started at the appropriate time, and for public health, because transmission can be prevented. METHODS: Data were collected from 767 HIV patients who were diagnosed in Sweden during 2003-2010 and were infected in Sweden or born in Sweden and infected abroad. A recent infection testing algorithm (RITA) was applied to BED-EIA test results (OD-n < 0.8), CD4 counts (≥ 200 cells/µl), and clinical information. A recent infection classification was used as indicator for early diagnosis. Time trends in early diagnosis were investigated to detect population changes in HIV testing behavior. Patients with early diagnosis were compared to patients with delayed diagnosis with respect to age, gender, transmission route, and country of infection (Sweden or abroad). RESULTS: Early diagnosis was observed in 271 patients (35%). There was no statistically significant time trend in the yearly percentage of patients with early diagnosis in the entire study group (p = 0.836) or in subgroups. Early diagnosis was significantly more common in men who have sex men (MSM) (45%) than in heterosexuals (21%) and injecting drug users (27%) (p < 0.001 and p = 0.001, respectively) in both univariate and multivariable analyses. The only other factor that remained associated with early diagnosis in multivariable analysis was young age group. CONCLUSION: Approximately one-third of the study patients were diagnosed early with no significant change over time. Delayed HIV diagnosis is a considerable problem in Sweden, which does not appear to diminish.


Asunto(s)
Infecciones por VIH/diagnóstico , VIH-1/aislamiento & purificación , Adulto , Anciano , Recuento de Linfocito CD4 , Diagnóstico Tardío , Consumidores de Drogas , Femenino , Heterosexualidad , Homosexualidad Masculina , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores Sexuales , Conducta Sexual , Suecia , Adulto Joven
7.
Scand J Infect Dis ; 46(10): 673-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25073537

RESUMEN

The modern medical treatment of HIV with antiretroviral therapy (ART) has drastically reduced the morbidity and mortality in patients infected with this virus. ART has also been shown to reduce the transmission risk from individual patients as well as the spread of the infection at the population level. This position statement from the Public Health Agency of Sweden and the Swedish Reference Group for Antiviral Therapy is based on a workshop organized in the fall of 2012. It summarizes the latest research and knowledge on the risk of HIV transmission from patients on ART, with a focus on the risk of sexual transmission. The risk of transmission via shared injection equipment among intravenous drug users is also examined, as is the risk of mother-to-child transmission. Based on current knowledge, the risk of transmission through vaginal or anal intercourse involving the use of a condom has been judged to be minimal, provided that the person infected with HIV fulfils the criteria for effective ART. This probably also applies to unprotected intercourse, provided that no other sexually transmitted infections are present, although it is not currently possible to fully support this conclusion with direct scientific evidence. ART is judged to markedly reduce the risk of blood-borne transmission between people who share injection equipment. Finally, the risk of transmission from mother to child is very low, provided that ART is started well in advance of delivery.


Asunto(s)
Antirretrovirales/uso terapéutico , Terapia Antirretroviral Altamente Activa/métodos , Transmisión de Enfermedad Infecciosa , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/transmisión , Transmisión Vertical de Enfermedad Infecciosa , Humanos , Medición de Riesgo , Suecia
8.
Nordisk Alkohol Nark ; 38(1): 66-88, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35309093

RESUMEN

Aims: To end the hepatitis and AIDS epidemics in the world by 2030, countries are encouraged to scale-up harm reduction services and target people who inject drugs (PWID). Blood-borne viruses (BBV) among PWID spread via unsterile injection equipment sharing and to combat this, many countries have introduced needle and syringe exchange programmes (NEP), though not without controversy. Sweden's long, complicated harm reduction policy transition has been deviant compared to the Nordic countries. After launch in 1986, no NEP were started in Sweden for 23 years, the reasons for which are analysed in this study. Methods: Policy documents, grey literature and research mainly published in 2000-2017 were collected and analysed using a hierarchical framework, to understand how continuous build-up of evidence, decisions and key events, over time influenced NEP development. Results: Sweden's first NEP opened in a repressive-control drug policy era with a drug-free society goal. Despite high prevalence of BBV among PWID with recurring outbreaks, growing research and key-actor support including a NEP law, no NEP were launched. Political disagreements, fluctuating actor-coalitions, questioning of research, and a municipality veto against NEP, played critical roles. With an individual-centred perspective being brought into the drug policy domain, the manifestation of a dual drug and health policy track, a revised NEP law in 2017 and removal of the veto, Sweden would see fast expansion of new NEP. Conclusions: Lessons from the Swedish case could provide valuable insight for countries about to scale-up harm reduction services including how to circumvent costly time- and resource-intensive obstacles and processes involving ideological and individual moral dimensions.

9.
Int J Drug Policy ; 90: 103059, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33360734

RESUMEN

BACKGROUND: Needle exchange programs (NEP) are important in reducing risk behaviours among people who inject drugs (PWID), also exposed to HIV and hepatitis C (HCV) through injecting drug use (IDU). Women (WWID) compared to men who inject drugs (MWID), are particularly vulnerable with complex needs, however less is known about their risk determinants and NEP outcomes. METHODS: In an open prospective NEP cohort, 697 WWID and 2122 MWID were followed, 2013-2018. Self-reported socio/drug-related determinants for receptive injection (needle/syringe and paraphernalia) and sexual risk behaviours at enrolment, lost to follow-up (LTFU) and probability of retention, were assessed for both groups. Multivariable logistic regression (adjusted odds ratios, aOR) for enrolment and Poisson regression (adjusted incidence rate ratios, aIRR) for LTFU, were used. Cumulative NEP-retention probability was analysed using a six- and 12-month scenario. RESULTS: At NEP enrolment, injection risk behaviours among WWID were associated with: younger age; homelessness; amphetamine-IDU; non-participation in opioid substitution therapy (OST); history of custody and among MWID: lower education level; cohabitation; homelessness, being a tenant; amphetamine-IDU; non-participation in OST; history of being sectioned, HIV-negative and HCV-positive. Condomless sex among WWID was associated with: younger age; lower education-level; cohabitation; having a partner; amphetamine-IDU; non-participation in OST; being HIV-negative and HCV-positive and among MWID: younger age; married; cohabitation; having a partner; amphetamine-IDU; non-participation in OST; history of custody, prison and being HIV-negative. WWID had higher NEP-retention levels compared to MWID over time. Being LTFU among WWID was associated with being HIV-negative and reporting injection risk behaviours and among MWID, younger age, non-participation in OST, being HIV-negative and having protected sex. CONCLUSIONS: Despite better NEP compliance among WWID, high injection and sexual risk behaviours in both gender-subgroups, especially in intimate relationships, suggests ongoing HCV and HIV-infection risks. Subgroup-variation in the NEP continuum of care warrants more gender-disaggregated research and tailoring gender-sensitive services may improve prevention, health and retention outcomes.


Asunto(s)
Infecciones por VIH , Hepatitis C , Abuso de Sustancias por Vía Intravenosa , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Hepatitis C/epidemiología , Humanos , Masculino , Programas de Intercambio de Agujas , Estudios Prospectivos , Asunción de Riesgos , Abuso de Sustancias por Vía Intravenosa/epidemiología , Suecia/epidemiología
10.
Infect Dis (Lond) ; 53(1): 1-8, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33043748

RESUMEN

BACKGROUND: Effective antiretroviral treatment of HIV-1, defined as continuously undetectable virus in blood, has substantial effects on the infectiousness and spread of HIV. AIM: This paper outlines the assessment of the Swedish Reference Group for Antiviral Therapy (RAV) and Public Health Agency of Sweden regarding contagiousness of HIV-infected persons on antiretroviral therapy (ART). Results and Conclusion: The expert group concludes that there is no risk of transmission of HIV during vaginal or anal intercourse if the HIV-infected person fulfils the criteria for effective ART. Summary: The effective antiretroviral therapy (ART) for HIV-1 infection has dramatically reduced the morbidity and mortality among people who live with HIV. ART also has a noticeable effect on the infectiousness and on the spread of the disease in society. Knowledge about this has grown gradually. For ART to be regarded effective, the level of the HIV RNA in the plasma should be repeatedly and continuously undetectable and the patient should be assessed as continually having high adherence to treatment. Based on available knowledge the Swedish Reference Group for Antiviral Therapy (RAV) and the Public Health Agency of Sweden make the following assessment: There is no risk of HIV transmission during vaginal or anal intercourse if the HIV positive person fulfils the criteria for effective treatment. This includes intercourse where a condom is not used. However, there are a number of other reasons for recommending the use of condoms, primarily to protect against the transmission of other STIs (sexually transmitted infections) and hepatitis, as well as unwanted pregnancy. The occurrence of other STIs does not affect the risk of HIV transmission in persons on effective ART. It is plausible that the risk for transmission of HIV infection between people who inject drugs and share injection equipment is reduced if the individual with HIV is on effective ART, but there are no studies that directly show this. The risk of transmission from mother to child during pregnancy, labour and delivery is very low if the mother's treatment is initiated well before delivery and if the treatment aim of undetectable virus levels is attained. This is dependent on healthcare services being aware of the mother's HIV infection at an early stage. In most contacts with health and medical care, including dental care, the risk of transmission is not significant if the patient is on effective treatment, but the risk may remain, although considerably reduced, in more advanced interventions such as surgery. When an incident with risk of transmission occurs, the patient must always inform those potentially exposed about his or her HIV infection.


Asunto(s)
Infecciones por VIH , VIH-1 , Antirretrovirales/uso terapéutico , Niño , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Transmisión Vertical de Enfermedad Infecciosa , Embarazo , Suecia/epidemiología
11.
Travel Med Infect Dis ; 25: 58-64, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29482013

RESUMEN

BACKGROUND: The proportion of newly diagnosed HIV and STI cases among men who have sex with men (MSM) that were contracted abroad has been increasing in Sweden. The present study explored factors associated with casual unprotected anal intercourse (UAI) and travelling abroad among MSM. METHODS: A cross-sectional stratified survey with 2751 MSM was conducted. The frequency of sexual practices among men who had casual UAI abroad (<12 months) with that of men who had casual UAI only in Sweden were compared and factors associated with casual UAI abroad were identified through regression analysis. RESULTS: Factors associated with casual UAI abroad within the previous 12 months were: visit a gay sauna (OR 6.15, 95% CI 3.43-11.06), visit gay café/bar/pub (OR 3.24, 95% CI 1.62-6.48), experience of UAI with a foreign visitor (OR 4.80, 95% CI 2.37-9.75), living with HIV (OR 2.73, 95% CI 1.15-6.48), reporting poor overall health (OR 2.24, 95% CI 1.13-4.44), being born outside Sweden (OR 2.21, 95% CI 1.08-4.53), and being vaccinated against hepatitis A, hepatitis B, or both (OR 1.92, 95% CI 1.13-3.27). CONCLUSION: MSM who engage in casual UAI abroad need to increase their understanding of related risks and that risk varies with place and practice. Health care professionals should address the preventive needs of traveling MSM and offer counselling and STI-preventive measures.


Asunto(s)
Homosexualidad Masculina , Viaje , Sexo Inseguro , Adolescente , Adulto , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Suecia , Adulto Joven
12.
Ann Epidemiol ; 28(12): 874-880, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30389234

RESUMEN

PURPOSE: The aim of the article was to investigate recent trends in human immunodeficiency virus (HIV) diagnosis rates among men who have sex with men (MSM) in high-income countries in North America, Western Europe, and Australia. METHODS: Data on annual rates of HIV diagnoses among MSM aged 15 to 65 years from 2000 to 2014 were collected from 13 high-income countries. Joinpoint regression software was used to empirically determine country-specific trend periods. Trends in HIV diagnosis rates and in the proportion of diagnoses occurring in young MSM aged 15 to 24 years were analyzed using Poisson regression and log-binomial regression, respectively. RESULTS: Six countries experienced an increasing trend from 2000 to 2007-08 followed by either a stable or declining trend through 2014. Five countries had recently increasing trends, and two countries had one stable trend from 2000 to 2014. All 13 countries experienced increases in the proportion of diagnoses occurring in young MSM. CONCLUSIONS: Since 2008, half of the 13 high-income countries examined experienced stable or decreasing trends. Still, some countries continue to experience increasing HIV trends, and young MSM are increasingly represented among new diagnoses. Efforts to support early sexual health promotion, reduce barriers to pre-exposure prophylaxis, and improve care engagement for young MSM are critical to addressing current HIV trends.


Asunto(s)
Serodiagnóstico del SIDA/tendencias , Infecciones por VIH/diagnóstico , Homosexualidad Masculina/estadística & datos numéricos , Adolescente , Australia/epidemiología , Sistema de Vigilancia de Factor de Riesgo Conductual , Países Desarrollados , Europa (Continente)/epidemiología , Infecciones por VIH/epidemiología , Humanos , Renta , Masculino , América del Norte/epidemiología , Factores Socioeconómicos , Adulto Joven
14.
Antivir Ther ; 11(8): 1031-9, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17302373

RESUMEN

OBJECTIVE: To investigate the prevalence of HIV-1 with major drug resistance-associated mutations among 261 men who have sex with men (MSM) who were newly diagnosed as HIV-1-infected at Venhälsan, Stockholm, between 1992-2002. METHODS: Major resistance-associated mutations were identified using an in-house method on stored plasma samples collected within 6 months of diagnosis. Additional samples were investigated from selected patients. Phylogenetic tree analyses were used to study evolutionary relationships between the viruses. Epidemiological data were retrieved from the partner notification investigations and the medical records. RESULTS: Informed consent as well as results from the resistance test were available for 201 out of 261 patients (77%) diagnosed during 1992-2002. Viruses from 28 of these 201 patients (14%) displayed major resistance-associated mutations; 27 of these viruses displayed only zidovudine/stavudine resistance-associated mutations. None of the patients displayed resistance mutations to protease inhibitors. The prevalence of resistance-associated mutations decreased over time; 20% in 1992-1996 versus 9% in 1997-2002 (P=0.04). A transmission cluster involving six patients with a singleton M41L mutation was identified. These viruses were phenotypically sensitive to zidovudine and stavudine. The M41L mutation, as well as most other resistance mutations, was stable for many years after transmission and may have been fixated by other putative compensatory mutations. CONCLUSIONS: In this Swedish population of MSM with newly diagnosed HIV-1 infection, the prevalence of resistance-associated mutations decreased over time. Reversion of resistance-associated mutations following transmission was slow and incomplete. A large transmission cluster with an interesting M41L singleton mutation was also observed.


Asunto(s)
Farmacorresistencia Viral Múltiple , Infecciones por VIH/transmisión , Infecciones por VIH/virología , VIH-1/genética , Homosexualidad Masculina , Mutación/genética , Adulto , Anciano , Fármacos Anti-VIH/farmacología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Filogenia , Suecia/epidemiología
15.
APMIS ; 114(1): 67-71, 2006 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16499664

RESUMEN

In the present study, 10 azithromycin-resistant Neisseria gonorrhoeae isolates from 6 Swedish male patients in 2004, 3 sporadic Swedish azithromycin-resistant N. gonorrhoeae isolates from recent years and one Swedish N. gonorrhoeae isolate from 2003 that was susceptible to azithromycin but assigned the same serological variant (serovar), i.e. IB-37, as the isolates from 2004 were included. The isolates were characterized phenotypically using antibiograms and serovar determination and genetically with pulsed-field gel electrophoresis (PFGE), entire porB gene sequencing and N. gonorrhoeae multiantigen sequence typing (NG-MAST). The epidemiological information and the results of the thorough phenotypic characterisation and genetic characterisation identified the first presumed domestic transmission of one azithromycin-resistant N. gonorrhoeae strain in Sweden in 2004. This stresses the need for continuous surveillance of the antibiotic susceptibility of N. gonorrhoeae in order to identify emergence of new resistance, monitor the changing patterns of the susceptibility, and be able to update treatment recommendations on a regular basis.


Asunto(s)
Antibacterianos/farmacología , Azitromicina/farmacología , Gonorrea/epidemiología , Gonorrea/transmisión , Neisseria gonorrhoeae/efectos de los fármacos , Neisseria gonorrhoeae/genética , Farmacorresistencia Bacteriana/genética , Electroforesis en Gel de Campo Pulsado , Gonorrea/microbiología , Humanos , Masculino , Epidemiología Molecular , Neisseria gonorrhoeae/clasificación , Filogenia , Porinas/genética , Suecia/epidemiología
16.
Infect Dis (Lond) ; 48(2): 93-8, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26414596

RESUMEN

In 2014 the Public Health Agency of Sweden and the Swedish Reference Group for Antiviral Therapy (RAV) conducted a review and analysis of the state of knowledge on the duration of follow-up after exposure to human immunodeficiency virus (HIV). Up until then a follow-up of 12 weeks after exposure had been recommended, but improved tests and new information on early diagnosis motivated a re-evaluation of the national recommendations by experts representing infectious diseases and microbiology, county medical officers, the RAV, the Public Health Agency, and other national authorities. Based on the current state of knowledge the Public Health Agency of Sweden and the RAV recommend, starting in April 2015, a follow-up period of 6 weeks after possible HIV-1 exposure, if HIV testing is performed using laboratory-based combination tests detecting both HIV antibody and antigen. If point-of-care rapid HIV tests are used, a follow-up period of 8 weeks is recommended, because currently available rapid tests have insufficient sensitivity for detection of HIV-1 antigen. A follow-up period of 12 weeks is recommended after a possible exposure for HIV-2, since presently used assays do not include HIV-2 antigens and only limited information is available on the development of HIV antibodies during early HIV-2 infection. If pre- or post-exposure prophylaxis is administered, the follow-up period is recommended to begin after completion of prophylaxis. Even if infection cannot be reliably excluded before the end of the recommended follow-up period, HIV testing should be performed at first contact for persons who seek such testing.


Asunto(s)
Fármacos Anti-VIH/administración & dosificación , Anticuerpos Anti-VIH/sangre , Antígenos VIH/sangre , Infecciones por VIH/diagnóstico , Infecciones por VIH/prevención & control , Profilaxis Posexposición/métodos , Pruebas Serológicas/métodos , Quimioprevención/métodos , Diagnóstico Precoz , Infecciones por VIH/virología , VIH-1/aislamiento & purificación , VIH-2/aislamiento & purificación , Personal de Salud , Humanos , Exposición Profesional , Suecia , Factores de Tiempo
18.
Int J STD AIDS ; 13(2): 109-14, 2002 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-11839165

RESUMEN

The aim of this study was to compare epidemiological data with antibiotic susceptibility patterns, so as to characterize the risk of infection with a highly resistant Neisseria gonorrhoeae strain. N. gonorrhoeae strains isolated in Sweden from February 1998 through January 1999 were tested for antibiotic susceptibility. Epidemiological data were received from each clinician reporting a case of gonorrhoea and these data were linked to the N. gonorrhoeae strains. A total of 348 N. gonorrhoeae isolates, representing 89% of all Swedish cases diagnosed during the 12-month period, were tested for antibiotic susceptibility. Of all isolates, 24% were beta-lactamase-producing, and 18% had decreased susceptibility to ciprofloxacin (MIC>0.064 mg/l). All isolates were fully susceptible to ceftriaxone and spectinomycin. More than 99% of the isolates were fully susceptible to azithromycin. The antibiotic susceptibility varied with the places where patients were exposed to infection. When exposed in Asia, 63% of the isolates showed reduced susceptibility to ciprofloxacin, compared with 0-8.5% of the isolates from patients exposed in other places (RR=8.5, P<0.001). Ciprofloxacin cannot be recommended as the first choice of treatment if the place of exposure was in Asia.


Asunto(s)
Antibacterianos/farmacología , Gonorrea/epidemiología , Neisseria gonorrhoeae/efectos de los fármacos , Farmacorresistencia Bacteriana Múltiple , Salud Global , Gonorrea/microbiología , Humanos , Pruebas de Sensibilidad Microbiana , Neisseria gonorrhoeae/aislamiento & purificación , Prevalencia , Suecia/epidemiología
19.
Lakartidningen ; 101(37): 2805-6, 2808-9, 2004 Sep 09.
Artículo en Sueco | MEDLINE | ID: mdl-15457823

RESUMEN

During the years 1997-2001 there were 1213 cases of HIV reported in Sweden. By using a questionnaire sent to respective clinics, additional information was obtained for 1018 patents. The transmission routes were: 28 per cent homosexual, 65 per cent heterosexual, 10 per cent intravenous drug abuse, 1 per cent blood transfusion (none in Sweden) and 6 per cent other/unknown. 61 per cent of men infected by sex with men had contracted their infection in Sweden whilst this was true for 14 per cent of heterosexually infected men and 20 per cent of heterosexually infected women. Instead many with heterosexually transmitted infections had been infected in Africa or Asia where in many cases the patients also originated from. In 15 per cent of cases the HIV infection was detected in conjunction with a diagnosis of aids. Partner notification led to at least 0.12 (127/1018) new cases per index case.


Asunto(s)
Brotes de Enfermedades , Infecciones por VIH/epidemiología , Síndrome de Inmunodeficiencia Adquirida/epidemiología , Síndrome de Inmunodeficiencia Adquirida/transmisión , Trazado de Contacto , Emigración e Inmigración , Femenino , Salud Global , Infecciones por VIH/transmisión , Heterosexualidad , Homosexualidad , Humanos , Masculino , Encuestas y Cuestionarios , Suecia/epidemiología , Suecia/etnología , Viaje
20.
Lakartidningen ; 101(28-29): 2332-5, 2004 Jul 08.
Artículo en Sueco | MEDLINE | ID: mdl-15291311

RESUMEN

The incidence of gonorrhoea has increased in Sweden and is now three times higher than in the middle of the 1990's. A remarkable increase of ciprofloxacin resistant gonorrhoea has been reported in Stockholm and other parts of Sweden during 2003. Among men attending a clinic for homosexual men in Stockholm the ciprofloxacin resistant cases have increased from a low level to over 50% during the last year. Most of the homosexual men are exposed in Stockholm and one serotype is dominant. Also in the county of Gävleborg there has been an outbreak of ciprofloxacin resistant gonorrhoea among young heterosexual men and women. No resistance to cefixime, ceftriaxone and spectinomycin has been noted and these antibiotics are then a better first choice of treatment in a Swedish context.


Asunto(s)
Antiinfecciosos/uso terapéutico , Ciprofloxacina/uso terapéutico , Gonorrea/tratamiento farmacológico , Antiinfecciosos/efectos adversos , Ciprofloxacina/efectos adversos , Farmacorresistencia Bacteriana , Femenino , Estudios de Seguimiento , Gonorrea/epidemiología , Gonorrea/transmisión , Homosexualidad Masculina , Humanos , Incidencia , Masculino , Neisseria gonorrhoeae/clasificación , Neisseria gonorrhoeae/efectos de los fármacos , Neisseria gonorrhoeae/inmunología , Serotipificación , Suecia/epidemiología
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