8 documents found, page 1 of 1

Sociodemographic, Clinical, and Behavioral Factors Associated With Sexual Trans...

Introduction: Sexually transmitted infections (STIs) continue to occur at high levels. According to the WHO, each year there are an estimated 374 million new infections with syphilis, gonorrhea, chlamydia, and trichomoniasis. STIs are associated with an increased risk of acquiring HIV infection. Migrants are reportedly highly affected by STIs. Objectives: This study aims to characterize factors associated with ...

HIV-1-Transmitted Drug Resistance and Transmission Clusters in Newly Diagnosed ...

Objective: To describe and analyze transmitted drug resistance (TDR) between 2014 and 2019 in newly infected patients with HIV-1 in Portugal and to characterize its transmission networks. Methods: Clinical, socioepidemiological, and risk behavior data were collected from 820 newly diagnosed patients in Portugal between September 2014 and December 2019. The sequences obtained from drug resistance testing were us...

Different guidelines for pre-exposure prophylaxis (PrEP) eligibility estimate H...

Introduction. Guidelines for pre-exposure prophylaxis (PrEP) provide criteria to identify individuals at higher risk of HIV infection. We compared the ability to predict HIV seroconversion of four guidelines: the World Health Organization (WHO), the United States Public Health Service and Centers for Disease Control and Prevention (US CDC), the European AIDS Clinical Society (EACS) and the Portuguese National H...

HIV Infection, risk factors and health services use among male-to-female transg...

Male-to-female transgender sex workers (TSW) have been identified as a key population at risk for HIV. This study examined risk behaviors and HIV prevalence among TSW, and described health services use. A participatory cross-sectional survey was conducted with 125 TSW recruited in locations and networks where sex workers congregate. HIV-risk behaviors were common among participants. Inconsistent condom use with...

A Rede de Rastreio Comunitária: Resultados

Incident risk factors as predictors of HIV seroconversion in the Lisbon cohort ...

HIV incidence in men who have sex with men (MSM) is increasing in western countries, including Portugal. We aimed to estimate HIV incidence and to assess how individual short-term changes in exposures over time predict seroconversion. We evaluated participants of an open cohort of HIV-negative MSM enrolled after testing at a community-based voluntary HIV counselling and testing centre in Lisbon. At each evaluat...

The Lisbon Cohort of men who have sex with men

Purpose Newly diagnosed HIV infections among men who have sex with men (MSM) are rising in many European countries. Surveillance tools must be tailored to the current state of the epidemic, and include decentralised prospective monitoring of HIV incidence and behavioural changes in key populations. In this scenario, an open prospective cohort study was assembled—The Lisbon Cohort of MSM—aiming to dynamically mo...

Risk-taking behaviours and HIV infection among sex workers in Portugal: results...

OBJECTIVES: Sex workers (SW) are key populations at an increased risk of HIV infection. This study aimed to characterise risk-taking behaviours and assess HIV prevalence among SW in Portugal. METHODS: A cross-sectional survey was conducted with 1040 SW using a participatory research approach. SW were recruited in sex-work locations and community-based organisation offices. Data were collected through a question...