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1.
Rev. latinoam. enferm. (Online) ; 31: e3890, ene.-dic. 2023. tab
Artigo em Espanhol | LILACS, BDENF - Enfermagem | ID: biblio-1431835

RESUMO

Objetivo: analizar los factores asociados con el uso inconsistente del preservativo masculino en hombres VIH negativos que tienen sexo con hombres. Método: estudio transversal, analítico, nacional realizado de forma online en todas las regiones de Brasil, en 2020, a través de redes sociales y sitios de citas. El uso inconsistente del preservativo se definió como el uso ocasional o no usarlo nunca. Se realizaron análisis estadísticos descriptivos, pruebas de asociación y regresión logística binaria. Resultados: 1222 (85%) de los 1438 participantes informaron uso inconsistente del preservativo. Las variables "homosexuales" (ORA: 2,03; IC 95%: 1,14-3,59; p = 0,016), "tener pareja estable" (ORA: 2,19; IC 95%: 1,55-3,09; p<0,001), "sexo oral" (ORA: 2,41; IC 95%: 1,31-4,43; p = 0,005), "anal insertivo" (ORA: 1,98; IC 95%: 1,10-3,58; p = 0,023) y "diagnóstico de ITS" (ORA: 1,59; IC 95%: 1,13-2,24; p = 0,007) se asociaron de forma independiente con el uso inconsistente del preservativo masculino. Las variables "recibió consejo de un amigo sobre la prueba del VIH" (ORA: 0,71; IC 95%: 0,52-0,96; p = 0,028) y "trabajador sexual" (ORA: 0,26; IC 95%: 0,11-0,60; p = 0,002) fueron factores protectores. Conclusión: las variables estudiadas indicaron que hay una fuerte relación entre las parejas estables y el aumento de la confianza y la baja adherencia al uso del preservativo, lo que coincide con otros estudios.


Objective: to analyze the factors associated with inconsistent use of male condoms among HIV-negative men who have sex with other men. Method: a cross-sectional, analytical and nationwide study conducted online in all the Brazilian regions in 2020, via networks and in dating websites. Inconsistent condom use was defined as occasional use or as never using it. Descriptive statistical analyses were performed, as well as association and binary logistic regression tests. Results: inconsistent condom use was reported by 1,222 (85%) of all 1,438 participants. The "homosexuals" (ORAdj: 2.03; 95% CI: 1.14-3.59; p=0.016), "having a fixed partner" (ORAdj: 2.19; 95% CI: 1.55-3.09; p<0.001), "oral sex" (ORAdj: 2.41; 95% CI: 1.31-4.43; p=0.005), "insertive anal" (ORAdj: 1.98; 95% CI: 1.10-3.58; p=0.023) and "STI diagnosis" (ORAdj: 1.59; 95% CI: 1.13-2.24; p=0.007) variables were independently associated with inconsistent use of male condoms. The "receiving advice on HIV test from a friend" (ORAdj: 0.71; 95% CI: 0.52-0.96; p=0.028) and "sex worker" (ORAdj: 0.26; 95% CI: 0.11-0.60; p=0.002) variables were protective factors. Conclusion: the variables under study pointed to a strong relationship between steady partners and increased trust and low adherence to condom use, corroborating other studies.


Objetivo: analisar os fatores associados ao uso inconsistente do preservativo masculino entre homens HIV negativos que fazem sexo com homens. Método: estudo transversal, analítico, de abrangência nacional realizado on-line em todas as regiões do Brasil, em 2020, por meio de redes sociais e em sites de relacionamento. O uso inconsistente do preservativo foi definido como uso ocasional ou nunca ter usado. Foram realizadas análises estatísticas descritivas, testes de associação e regressão logística binária. Resultados: o uso inconsistente do preservativo foi relatado por 1222 (85%) dos 1438 participantes. As variáveis "homossexuais" (ORA: 2,03; IC 95%: 1,14- 3,59; p = 0,016), "ter parceiro fixo" (ORA: 2,19; IC 95%: 1,55-3,09; p<0,001), "sexo oral" (ORA: 2,41; IC 95%: 1,31-4,43; p = 0,005), "anal insertivo" (ORA: 1,98; IC 95%: 1,10-3,58; p = 0,023) e "diagnóstico de IST" (ORA: 1,59; IC 95%: 1,13-2,24; p = 0,007) foram independentemente associadas ao uso inconsistente do preservativo masculino. As variáveis "recebeu aconselhamento de amigo sobre teste de HIV" (ORA: 0,71; IC 95%: 0,52-0,96; p = 0,028) e "profissional do sexo" (ORA: 0,26; IC 95%: 0,11-0,60; p = 0,002) foram fatores de proteção. Conclusão: as variáveis estudadas apontaram uma forte relação das parcerias fixas com o aumento da confiança e uma baixa adesão ao uso do preservativo, o que corrobora com outros estudos.


Assuntos
Humanos , Masculino , Síndrome de Imunodeficiência Adquirida/prevenção & controle , Preservativos , Sexo sem Proteção , Fatores de Proteção , Minorias Sexuais e de Gênero
2.
Open Forum Infect Dis ; 10(4): ofad165, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37125235

RESUMO

Background: Neisseria gonorrhoeae (NG) has developed antimicrobial resistance (AMR) to multiple classes of antibiotics. While treatment of symptomatic NG in groups, such as men who have sex with men (MSM), is crucial, screening programs targeting asymptomatic NG cases may contribute to excessive antibiotic exposure of the population and thus to the emergence of gonococcal AMR. Our primary aim was to assess if intense screening could promote AMR in NG. Methods: We built a network-based model of NG transmission dynamics among MSM in Belgium to estimate the prevalence of NG in the population and the risk of AMR. The model simulates daily transmission of NG among 3 anatomical sites in a population of 10 000 MSM, grouped as low risk or high risk, over 10 years. The effect of group-wise variation in treatment efficacy levels and screening intensities on NG prevalence and cumulative risk of AMR emergence was evaluated. Results: Increasing screening intensity in the low-risk MSM had little effect on NG prevalence. An inverse correlation between screening intensity in the high-risk group and both NG prevalence and the risk for azithromycin resistance was observed, irrespective of the screening intensity in the low-risk group. High-risk MSM were at higher risk for azithromycin-resistant NG in all screening intensity and treatment efficacy scenarios, compared to low-risk MSM. Conclusions: Our results suggest that intensive screening in the low-risk population has little impact on prevalence but may increase the probability of AMR emerging. In contrast, intensive screening in the high-risk population reduces both the prevalence of NG and macrolide resistance.

4.
Cancer Med ; 2023 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-37140209

RESUMO

BACKGROUND: Human papillomavirus (HPV) infection is associated with anal cancers and is more prevalent in gay, bisexual, and men who have sex with men (gbMSM), partly due to their vulnerability to HIV infection. Baseline HPV genotype distributions and risk factors can inform the design of next-generation HPV vaccines to prevent anal cancer. METHODS: A cross-sectional study was conducted among gbMSM receiving care at a HIV/STI clinic in Nairobi, Kenya. Anal swabs were genotyped using a Luminex microsphere array. Multiple logistic regression methods were used to identify risk factors for four HPV outcomes (any HPV, any HR-HPV, and 4- and 9-valent vaccine-preventable HPVs). RESULTS: Among 115 gbMSM, 51 (44.3%) were HIV-infected. Overall HPV prevalence was 51.3%; 84.3% among gbMSM living with HIV and 24.6% among gbMSM without HIV (p < 0.001). One-third (32.2%) had HR-HPV and the most prevalent vaccine-preventable HR-HPV genotypes were 16, 35, 45, and 58. HPV-18 was uncommon (n = 2). The 9-valent Gardasil vaccine would have prevented 61.0% of HPV types observed in this population. In multivariate analyses, HIV status was the only significant risk factor for any HPV (adjusted odds ratio [aOR]:23.0, 95% confidence interval [95% CI]: 7.3-86.0, p < 0.001) and for HR-HPV (aOR: 8.9, 95% CI: 2.8-36.0, p < 0.001). Similar findings were obtained for vaccine-preventable HPVs. Being married to a woman significantly increased the odds of having HR-HPV infections (aOR: 8.1, 95% CI: 1.6-52.0, p = 0.016). CONCLUSIONS: GbMSM living with HIV in Kenya are at higher risk of anal HPV infections including genotypes that are preventable with available vaccines. Our findings support the need for a targeted HPV vaccination campaign in this population.

6.
Vox Sang ; 2023 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-37183555

RESUMO

BACKGROUND AND OBJECTIVES: Since the advent of AIDS, men who have sex with men (MSM) have often been deferred from blood donation. In France, quarantine plasma donation by MSM donors with the same deferral rules as for other donors was introduced in July 2016 and continued up to March 2022. At this time, MSM-specific deferral criteria were lifted for all blood or plasma donation. The donor deferral, as well as rate of infectious markers in plasma donors who would have been otherwise deferred for MSM activity, was evaluated and compared with those of the other donors during the same time period from June 2016 to March 2022. RESULTS: A total of 8843 MSM donors made 12,250 plasma donation applications. The overall deferral rate was very high (75.2%), mainly due to the absence of apheresis capacity at the donation site. The deferral criteria for sexual risk were present in 12.1% of MSM donors compared with 1.0% in other plasma and blood donors (p < 0.001). Overall, 994 MSM donors made 2880 plasma donations. Of these, one donation was HIV positive (34.7 vs. 0.6/105 donations by other donors, relative risk [RR]: 61.0 [95% confidence interval [CI]: 8.5-437.7]), one was HBV positive (34.7 vs. 4.5/105 , RR: 7.7 [95% CI: 1.1-54.6]) and none were HCV positive (0 vs. 2.4/105 ). Additionally, 21 donations were syphilis positive (729.2 vs. 10.7/105 , RR: 67.9 [95% CI: 44.2-104.4]). A post hoc analysis of eligible MSM donors who were unable to donate plasma due to logistic constraints yielded similar findings. CONCLUSION: Plasma donation by donors who would have been otherwise deferred for MSM activity was associated with both an increased deferral rate for sexual risk and an increased rate of infectious markers, notably syphilis.

8.
Vox Sang ; 2023 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-37191161

RESUMO

BACKGROUND AND OBJECTIVES: In Canada, the time deferral for gay, bisexual and other men who have sex with men (gbMSM) to donate blood has gradually decreased. In September 2022, this deferral was replaced with sexual behaviour-based screening for all donors. We investigate how data from targeted research programmes addressed knowledge gaps to support this change. MATERIALS AND METHODS: We conducted a scoping review describing the Canadian literature available before the research programmes relating to (1) behavioural indicators of HIV risk and (2) attitudes to blood donation among gbMSM, current donors and the general population. We summarize the targeted research programmes, their outputs and impact to date. RESULTS: For question 1, five projects met inclusion criteria. For question 2, three articles met inclusion criteria. Knowledge gaps identified were insufficient evidence of HIV incidence in gbMSM who met other donor eligibility criteria and scant data on opinions and views of blood donation and screening criteria for sexual risk behaviours. The research programmes funded 19 projects at 11 different research sites involving over 100 individual researchers/collaborators resulting in 19 peer-reviewed publications to date. Leveraging existing gbMSM cohorts yielded relevant HIV incidence data to inform safety modelling studies. Findings indicated that sexual behaviour-based screening was acceptable to gbMSM and donors, and donor discomfort around specific questions could be mitigated with clear explanations. CONCLUSION: Targeted research programmes filled critical knowledge gaps and informed a change to gender-neutral, sexual behaviour-based screening for all donors. Findings supported successful implementation of these changes with research-informed staff training.

9.
AIDS Behav ; 2023 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-37195471

RESUMO

Pre-exposure prophylaxis (PrEP) is a highly effective HIV prevention option for gay, bisexual and other men who have sex with men (GBMSM). However, with newer PrEP options, a greater understanding of whether and why GBMSM switch dosing strategies is needed to inform clinical practice and research. We assessed the dosing strategies (daily or on-demand) of GBMSM enrolled in an mHealth PrEP adherence pilot intervention at four timepoints over approximately 10 months. Among GBMSM with complete data (n = 66), a consistent daily dosing strategy was used by most (73%) participants across all time points, while on-demand PrEP was used at least once during the study period by 27% of participants. A higher percentage of on-demand PrEP users self-reported as Asian/Pacific Islander and had less positive attitudes toward PrEP, adjusting for key sociodemographic variables and intervention arm. Daily PrEP users reported high numbers of sexual partners, and the primary reason that they would switch to on-demand PrEP is reduced sexual activity. At the final assessment, 75% of participants were taking daily PrEP, of whom 27% reported that they would like to switch to another option, including on-demand and long-acting injectable PrEP. While findings were largely descriptive, they showed that switches in PrEP dosing strategies are relatively common and PrEP strategy choice may vary across racial and ethnic groups.

10.
Artigo em Inglês | MEDLINE | ID: mdl-37195728

RESUMO

One hope surrounding long-acting HIV pre-exposure prophylaxis (PrEP) is reaching new users who could most benefit, as well as improving the experiences of oral PrEP users who may desire to switch modalities. Gay, bisexual, queer, and other men who have sex with men (GBQM) continue to make up over half of new HIV diagnoses in Canada, and oral PrEP uptake has plateaued among this population. Approval of injectable PrEP is anticipated, but there is a paucity of research to inform health promotion and implementation. Between June and October 2021, we conducted 22 in-depth interviews with GBQM oral PrEP users and non-PrEP users living in Ontario, Canada. We also conducted small focus groups or individual interviews with 20 key stakeholders (health care providers, public health officials, community-based organization staff). Interviews were audio recorded, transcribed verbatim, and analyzed in NVivo using thematic analysis. Only about one-third of GBQM had heard of injectable PrEP. Many PrEP users perceived greater convenience, adherence, and confidentiality with injectable PrEP. Some PrEP users did not anticipate switching because of needle discomfort or feeling more "in control" with oral PrEP. None of the non-PrEP users said that injectable PrEP would make them start PrEP. Injectable PrEP may offer additional convenience for GBQM; however, it did not appear to affect participants' PrEP decision-making significantly. Stakeholders noted that injectable PrEP may improve access, support adherence, and benefit marginalized groups. Some clinicians expressed concerns about the time/personnel required to make injectable PrEP available. System-level challenges in implementing injectable PrEP, including cost, must also be addressed.

11.
Int J Behav Med ; 2023 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-37156941

RESUMO

BACKGROUND: Oral pre-exposure prophylaxis (PrEP) as a safe and effective antiretroviral medicine-based prevention against HIV has not been widely adopted by gay, bisexual, and other men who have sex with men (MSM) in China. A deeper understanding of barriers and facilitators to PrEP uptake is needed to inform the development of effective interventions. METHOD: During July-August 2020, we conducted one-on-one semi-structured interviews with 31 Chinese MSM with varied PrEP use experiences (PrEP-naïve, former, and current PrEP users). Interviews were digitally recorded and transcribed in Chinese. Informed by the Information-Motivation-Behavioral Skills Model (IMB), we analyzed the data using a thematic analysis approach to identify the barriers and facilitators to PrEP uptake among Chinese MSM. RESULTS: Major barriers to PrEP uptake among MSM in the sample included uncertainty about PrEP efficacy and lack of PrEP education (information), concerns over potential side effects and cost (motivation), and difficulties in identifying authentic PrEP medications and managing PrEP care (behavioral skills). Facilitators include the perceived benefit of PrEP in improving the quality of sex life and control over health. At the contextual level, we also identified barriers to PrEP access from a thriving informal PrEP market and stressors related to being MSM. CONCLUSION: Our findings identified a need to invest in non-discriminatory public health messaging of PrEP, explore options for MSM-friendly provision of PrEP outside of traditional HIV care settings, and be attentive to the unique context of an established informal PrEP market in future PrEP initiatives.

12.
Artigo em Inglês | MEDLINE | ID: mdl-37174187

RESUMO

BACKGROUND: Men who have sex with men (MSM) in Malaysia are disproportionately affected by HIV. Pre-exposure prophylaxis (PrEP) is an evidence-based HIV prevention strategy; yet, uptake remains low among Malaysian MSM, who have a limited understanding of barriers to PrEP. METHODS: We employed the nominal group technique (NGT), a structured mixed-methods strategy to understand the barriers and facilitators to PrEP use among Malaysian MSM, combined with a qualitative focus group. Six virtual focus group sessions, three among MSM (n = 20) and three among stakeholders (n = 16), were conducted using a video-conferencing platform. Rank-ordering of barriers from NGT was recorded, and thematic analysis was conducted for content. RESULTS: Similar barriers were reported by MSM and community stakeholders, with aggregated costs associated with PrEP care (e.g., consultation with a clinician, medication, laboratory testing) being the greatest barrier, followed by limited knowledge and awareness of PrEP. Additionally, the lack of access to PrEP providers, the complex clinical protocol for PrEP initiation and follow-up, and social stigma undermined PrEP delivery. Qualitative discussions identified potential new strategies to overcome these barriers, including expanded outreach efforts to reach hard-to-reach MSM, a 'one-stop' delivery model for PrEP services, a patient-centered decision aid to guide PrEP uptake, and easy access to LGBT-friendly PrEP providers. CONCLUSION: Current barriers may be overcome through governmental subsidy for PrEP and evidence-informed shared decision aids to support both MSM and PrEP providers.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Masculino , Humanos , Homossexualidade Masculina , Profilaxia Pré-Exposição/métodos , Infecções por HIV/prevenção & controle , Infecções por HIV/tratamento farmacológico , Malásia , Fármacos Anti-HIV/uso terapêutico
13.
J Med Virol ; 95(5): e28763, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37212313

RESUMO

People are expected to have been previously vaccinated with a Vaccinia-based vaccine, as until 1980 smallpox vaccination was a standard protocol in China. It is unclear whether people with smallpox vaccine still have antibody against vaccinia virus (VACV) and cross-antibody against monkeypox virus (MPXV). Herein, we assessed the binding antibodies with antigen of VACV-A33 and MPXV-A35 in the general population and HIV-1 infected patients. Firstly, we detected VACV antibody with A33 protein to evaluate the efficiency of smallpox vaccination. The result show that 29% (23 of 79) of hospital staff (age ≥ 42 years) and 63% (60 of 95) of HIV-positive patients (age ≥ 42 years) from Guangzhou Eighth People's Hospital were able to bind A33. However, among the subjects below 42 years of age, 1.5% (3/198) of the hospital volunteer samples and 1% (1/104) of the samples from HIV patients were positive for antibodies against A33 antigen. Then, we assessed the specific cross-reactive antibodies against MPXV A35 protein. 24% (19 of 79) hospital staff (age〉 = 42 years) and 44% (42 of 95) of HIV-positive patients (age〉 = 42 years) were positive. 98% (194/198) of the hospital staff and 99% (103/104) of the HIV patients had no A35-binding antibodies. Further, we found significant sex differences for the reactivity to A35 antigen were observed in HIV population, but no significant sex differences in hospital staff. Further, we analyzed the positivity rate of anti-A35 antibody of men who have sex with men (MSM) and non-MSM in HIV patients (age〉 = 42years). We found that 47% of no-MSM population and 40% of MSM population were positive for A35 antigen, with no significant difference. Lastly, we found only 59 samples were positive for anti-A33 IgG and anti-A35 IgG in all participants. Together, we demonstrated A33 and A35 antigens binding antibodies were detected in HIV patients and general population who were older than 42 years, and cohort studies only provided data of serological detection to support early response to monkeypox outbreak.


Assuntos
Infecções por HIV , HIV-1 , Varíola dos Macacos , Minorias Sexuais e de Gênero , Vacina Antivariólica , Varíola , Humanos , Feminino , Masculino , Lactente , Adulto , Varíola dos Macacos/epidemiologia , Homossexualidade Masculina , Vírus Vaccinia , Antígenos Virais , Proteínas Virais , Vírus da Varíola dos Macacos , Imunoglobulina G
14.
J Med Virol ; 95(5): e28781, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37212337

RESUMO

To identify the frequency of late presentation and late presentation with advanced disease, and associated factors in people living with HIV (PLHIV). Data from PLHIV diagnosed between 2008 and 2021 were retrospectively analyzed. Time of diagnosis (categorized based on key events affecting HIV care continuum e.g., national strategies, HIV guidelines, COVID-19 pandemic) and characteristics of late presenters (LP: CD4 ≤350 cells/mm³ or an AIDS defining event) and late presenters with advanced disease (LPAD: CD4 <200 cells/mm³) were describe. Associations between dependent (LP, LPAD) and independent variables were assessed using univariate/multivariate regression tests and presented as odds ratios (95% confidential interval). Of 1585 individuals (93.7% men), 42.5% were LPs and 19.3% were LPADs. Most common route of transmission was sex between men (54.3%). Non-LPs were younger (30 vs. 34 and 36 years; p < 0.001) and included more men who have sex with men (60.3% vs. 46.3% and 39.5%; p < 0.001). Factors associated with being LP and LPAD were age >30 years, heterosexual/unknown route of transmission (vs. sex between men), diagnosis in 2008-2013 or 2020-2021, (vs. 2014-2019). With reference to Turkish subjects, migrants from Africa had higher odds of being LPAD. LP is still an important health issue in HIV care. Heterosexuality, older age (>30 years), migration from Africa, and the COVID-19 pandemic are associated with delays in HIV presentation in Turkey. These factors need to be considered when developing and implementing policies to enable earlier diagnosis and treatment of PLHIV to achieve UNAIDS 95-95-95 targets.


Assuntos
COVID-19 , Infecções por HIV , Minorias Sexuais e de Gênero , Masculino , Humanos , Adulto , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/diagnóstico , Fatores de Risco , Homossexualidade Masculina , Turquia/epidemiologia , Estudos Retrospectivos , Pandemias , Contagem de Linfócito CD4 , Diagnóstico Tardio , Fatores Etários , COVID-19/diagnóstico , COVID-19/epidemiologia
15.
Digit Health ; 9: 20552076231173557, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37214661

RESUMO

Objectives: Gay, bisexual and other men who have sex with men (GBM) are disproportionately affected by sexually transmitted and blood-borne infections (STBBI) due to stigma and other factors such as structural barriers, which delay STBBI testing in this population. Understanding acceptability of online testing is useful in expanding access in this population, thus we examined barriers to clinic-based testing, acceptability of a potential online testing model, and factors associated with acceptability among GBM living in Ontario. Methods: Sex Now 2019 was a community-based, online, bilingual survey of GBM aged ≥15. Prevalence ratios (PR) and 95% confidence intervals (95%CI) were calculated using modified Poisson regression with robust variances. Multivariable modelling was conducted using the Hosmer-Lemeshow-Sturdivant approach. Results: Among 1369 participants, many delayed STBBI testing due to being too busy (31%) or inconvenient clinic hours (29%). Acceptability for online testing was high (80%), with saving time (67%) as the most common benefit, and privacy concerns the most common drawback (38%). Statistically significant predictors of acceptability for online testing were younger age (PR = 0.993; 95%CI: 0.991-0.996); a greater number of different sexual behaviours associated with STBBI transmission (PR = 1.031; 95%CI: 1.018-1.044); identifying as an Indigenous immigrant (PR = 1.427; 95%CI: 1.276-1.596) or immigrant of colour (PR = 1.158; 95%CI: 1.086-1.235) compared with white non-immigrants; and currently using HIV pre-exposure prophylaxis (PrEP) compared to not currently using PrEP (PR = 0.894; 95%CI: 0.828-0.965). Conclusions: Acceptability of online testing was high among GBM in Ontario. Implementing online STBBI testing may expand access for certain subpopulations of GBM facing barriers to current in-person testing.

16.
Acta Trop ; : 106953, 2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-37224988

RESUMO

BACKGROUND: With the number of newly diagnosed HIV-positive heterosexual women increasing yearly, it is urgent to understand HIV-1 transmission among heterosexual women in Guangzhou, China. METHODS: HIV-1 pol sequences were obtained from people living with HIV-1 during 2008 to 2017 in Guangzhou, China. A molecular network was constructed using HIV-1 TRAnsmission Cluster Engine with 1.5% genetic distance. Potential linkage and centrality metric were measured with Cytoscape. Transmission pathways between heterosexual women and men who have sex with men (MSM) were determined using Bayesian phylogenetic analysis. RESULTS: In the network, 1799 (62.6%) MSM, 692 (24.1%) heterosexual men and 141 (4.9%) heterosexual women formed 259 clusters. Molecular clusters including MSM and heterosexuals were more likely to form larger networks (P<0.001). Nearly half of the heterosexual women (45.4%) were linked to heterosexual men and 17.7% to MSM, but only 0.9% of MSM were linked to heterosexual women. Thirty-three (23.4%) heterosexual women linked to at least one MSM node and were in peripheral role. Compared to general heterosexual women, the proportion of heterosexual women linked to MSM infected with CRF55_01B (P<0.001) and CRF07_BC (P<0.001) was higher than that of other subtypes, and the proportion diagnosed between 2012-2017 (P=0.001) was higher than that in 2008-2012. In MCC trees, 63.6% (21/33) of the heterosexual women differentiated from the heterosexual evolutionary branch, while 36.4% (12/33) differentiated from the MSM evolutionary branch. CONCLUSION: Heterosexual women living with HIV-1 were mainly linked to heterosexual men and were in peripheral positions in the molecular network. The role of heterosexual women in HIV-1 transmission was limited, but the interaction between MSM and heterosexual women were complex. Awareness of the HIV-1 infection status of sexual partners and active HIV-1 detection are needed for women.

17.
J Soc Issues ; 79(1): 390-409, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37215260

RESUMO

In addition to the pervasive anti-Black racism faced by Black people in the United States, Black men who have sex with men (BMSM) face sexual minority stigma and, among BMSM living with HIV, HIV-related stigma. These multilevel social forces shape social networks, which are important sources of resources, support, and behavior regulation. This study quantitatively examined the relationship between social network characteristics and sexual minority stigma (e.g., homophobia, biphobia), assessed by reported concerns around disclosing one's sexual minority status, among BMSM in Baltimore, Maryland in 2014 (N = 336). A majority of participants (63.7%) reported experiencing medium or high levels of sexual minority disclosure concern. In a multiple linear regression model, participants with higher sexual minority disclosure concern reported lower network density and having fewer good friends who are gay or bisexual men. Stratifying the same multiple linear regression model by HIV status supports the importance of an intersectional understanding of sexual minority and HIV-related stigma. These findings can help health-related programs address the complex relationships between sexual minority stigma, social networks, and HIV status within this multiply-marginalized and high-priority population.

18.
Artigo em Inglês | MEDLINE | ID: mdl-37222734

RESUMO

Although pre-exposure prophylaxis (PrEP) is an efficacious biomedical intervention, the effectiveness of same-day PrEP programs has not been widely studied. We utilized data from three of the four largest PrEP providers in Mississippi from September 2018 to September 2021 linked to the Mississippi State Department of Health's Enhanced HIV/AIDS reporting system. HIV diagnosis was defined as testing newly positive for HIV at least 2 weeks after the initial PrEP visit. We calculated the cumulative incidence and incidence rate of HIV per 100 person-years (PY). Person-time was calculated as time from the initial PrEP visit to (1) HIV diagnosis or (2) December 31, 2021 (HIV surveillance data end date). We did not censor individuals if they discontinued PrEP to obtain an estimate of PrEP effectiveness rather than efficacy. Among the 427 clients initiating PrEP during the study period, 2.3% [95% confidence interval (CI): 0.9-3.8] subsequently tested positive for HIV. The HIV incidence rate was 1.18 per 100 PY (95% CI: 0.64-2.19) and median time to HIV diagnosis after the initial PrEP visit was 321 days (95% CI: 62-686). HIV incidence rates were highest among transgender and nonbinary individuals [10.35 per 100 PY (95% CI: 2.59-41.40)] compared with cisgender men and women, and among people racialized as Black [1.45 per 100 PY (95% CI: 0.76-2.80)] compared with White and other racialized groups. These findings indicate a need for more clinical and community interventions that support PrEP persistence and restarts among those at high risk of HIV acquisition.

19.
JMIR Mhealth Uhealth ; 11: e44513, 2023 05 08.
Artigo em Inglês | MEDLINE | ID: mdl-37155223

RESUMO

BACKGROUND: Requesting and disclosing HIV serostatus is associated with a reduction in HIV transmission among men who have sex with men (MSM). However, the reliability of common methods for HIV serostatus request and disclosure is inadequate. Validated approaches for requesting and disclosing HIV serostatus are necessary. OBJECTIVE: The objective of this study was to investigate the use of the HIV e-report as authentic evidence of HIV serostatus among the MSM community in Guangzhou, China. Additionally, the study aimed to explore its correlation with HIV serostatus requesting and disclosure receiving behavior. METHODS: This study is a subgroup analysis of a cluster randomized controlled trial (RCT) that enrolled 357 participants during the first year. Participants in this RCT were recruited from the WeChat-based HIV testing service miniprogram developed by Guangzhou Center for Disease Control and Prevention, China. Participants completed web-based questionnaires at baseline and at the month 3 follow-up, which covered sociodemographic characteristics, HIV-related information, HIV serostatus requests, receiving HIV serostatus disclosures, and HIV e-report usage. Univariate and multivariate logistic regressions were used for data analysis. RESULTS: The WeChat-based HIV e-report was available in Guangzhou when the RCT project started. At the month 3 follow-up, 32.2% (115/357) of participants had their own HIV e-reports, and 37.8% (135/357) of them had received others' HIV e-reports. In all, 13.1% (27/205) and 10.5% (16/153) of participants started to use HIV e-reports to request the HIV serostatus from regular and casual male sex partners, respectively. Moreover, 27.3% (42/154) and 16.5% (18/109) of the regular and casual male sex partners, respectively, chose HIV e-reports to disclose their HIV serostatus. Compared to MSM who did not have HIV e-reports, those who had HIV e-reports and stated, "I had had my own HIV e-report(s) but hadn't sent to others" (multivariate odds ratio 2.71, 95% CI 1.19-6.86; P=.02) and "I had had my own HIV e-reports and had sent to others" (multivariate odds ratio 2.67, 95% CI 1.07-7.73; P=.048) were more likely to request HIV serostatus from their partners. However, no factor was associated with receiving an HIV serostatus disclosure from partners. CONCLUSIONS: The HIV e-report has been accepted by the MSM community in Guangzhou and could be applied as a new optional approach for HIV serostatus requests and disclosures. This innovative intervention could be effective in promoting infectious disease serostatus disclosure among the related high-risk population. TRIAL REGISTRATION: ClinicalTrials.gov NCT03984136; https://clinicaltrials.gov/show/NCT03984136. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/s12879-021-06484-y.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Masculino , Humanos , Parceiros Sexuais , Revelação , Homossexualidade Masculina , Infecções por HIV/prevenção & controle , Infecções por HIV/epidemiologia
20.
BMC Public Health ; 23(1): 933, 2023 05 23.
Artigo em Inglês | MEDLINE | ID: mdl-37221575

RESUMO

BACKGROUND: Men who have sex with men (MSM) have suboptimal uptake of human papillomavirus (HPV) and meningococcal vaccines. This study examines barriers and facilitators to HPV and meningococcal vaccination among MSM in a large, racially/ethnically diverse, and medically underserved U.S. region. METHODS: In 2020, we conducted five focus groups with MSM living in the Inland Empire, California. Participants discussed (1) their knowledge about and attitudes toward HPV, meningococcal disease, and related vaccines; and (2) factors that would encourage or discourage vaccine uptake. Data were systematically analyzed to identify salient barriers and facilitators to vaccination. RESULTS: Participants (N = 25) had a median age of 29. Most were Hispanic (68%), self-identified as gay (84%), and had college degrees (64%). Key barriers to vaccination included: (1) limited awareness and knowledge about HPV and meningococcal disease, (2) reliance on mainstream healthcare providers for vaccine information, (3) stigma and reluctance to disclose sexual orientation, (4) uncertainty about health insurance coverage and vaccine costs, and (5) distance and time required to access vaccines. Key facilitators to vaccination were: (1) vaccine confidence, (2) perceived severity of HPV and meningococcal disease, (3) bundling vaccination into routine healthcare, and (4) pharmacies as vaccination sites. CONCLUSIONS: Findings highlight opportunities for HPV and meningococcal vaccine promotion, including targeted education and awareness campaigns for MSM, LGBT inclusivity training for healthcare providers, and structural interventions to improve vaccine accessibility.


Assuntos
Vacinas Meningocócicas , Infecções por Papillomavirus , Minorias Sexuais e de Gênero , Feminino , Humanos , Masculino , Homossexualidade Masculina , Papillomavirus Humano , Vacinação
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