Sexuality and prevention among men who have sex with men in the contexts of the AIDS and COVID-19 pandemics. / Sexualidade e prevenção entre homens que fazem sexo com homens nos contextos das pandemias de AIDS e da Covid-19.

This essay reflects on sexual practices and prevention in the contexts of the AIDS and COVID-19 pandemics. It analyses data collected between July and October 2020 through participant observation, as part of an ethnographic research project on HIV vulnerability and prevention among men who have sex with men in the Metropolitan Region of Recife, state of Pernambuco (PE), Brazil. The results point to the relevance of physical appearance and the affective bond between partners in engendering emotions that mediate coping with the risk of infection during both pandemics. It indicates the need to incorporate those communicational dimensions into informational materials to make them more effective.

Este ensaio reflete sobre práticas sexuais e prevenção nos contextos das pandemias de AIDS e da COVID-19. Analisa dados coletados entre julho e outubro de 2020, por meio de observação participante, no âmbito de uma pesquisa etnográfica sobre vulnerabilidade e prevenção ao HIV entre homens que fazem sexo com homens da Região Metropolitana do Recife. Os resultados apontam para a relevância da aparência corporal e da vinculação afetiva entre os parceiros no engendramento de emoções que medeiam a lida com risco de infecção em ambas as pandemias. Sinaliza para a necessidade de incorporar essas dimensões comunicacionais em materiais informativos, de modo a torná-los mais eficazes.

HIV and AIDS prevention: knowledge, attitudes, practices and health literacy of older persons in the Western Cape and KwaZulu-Natal Provinces, South Africa and in Lesotho.

BACKGROUND: Population ageing and access to anti-retroviral therapies in South Africa have resulted in ageing of the HIV/AIDS epidemic, which has implications for policy, planning and practice. Impactful interventions on HIV/AIDS for older persons require knowledge on effects of the pandemic on this population. A study was undertaken to assess knowledge, attitudes, and practices (KAP) of HIV/AIDS, as well as health literacy (HL) level of a population aged ≥ 50 years. METHODS: A cross-sectional survey was conducted at three sites in South Africa and two sites in Lesotho with an educational intervention at the South African sites. At baseline, data were collected for assessment of KAP of HIV/AIDS and HL levels. The pre- and post-intervention comprised participants at South African sites being familiarised with the contents of a specially constructed HIV/AIDS educational booklet. Participants' KAP was reassessed six weeks later. A composite score of ≥ 75% was considered adequate KAP and an adequate HL level. RESULTS: The baseline survey comprised 1163 participants. The median age was 63 years (range 50-98 years); 70% were female, and 69% had ≤ 8 years' education. HL was inadequate in 56% and the KAP score was inadequate in 64%. A high KAP score was associated with female gender (AOR = 1.6, 95% CI = 1.2-2.1), age < 65 years (AOR = 1.9, 95% CI = 1.5-2.5) and education level (Primary school: AOR = 2.2; 95% CI = 1.4-3.4); (High school: AOR = 4.4; 95% CI = 2.7-7.0); (University/college: AOR = 9.6; 95% CI = 4.7-19.7). HL was positively associated with education but no association with age or gender. The educational intervention comprised 614 (69%) participants. KAP scores increased post intervention: 65.2% of participants had adequate knowledge, versus 36% pre-intervention. Overall, younger age, being female and higher education level were associated with having adequate knowledge about HIV/AIDS, both pre- and post-intervention. CONCLUSIONS: The study population had low HL, and KAP scores regarding HIV/AIDS were poor but improved following an educational intervention. A tailored educational programme can place older people centrally in the fight against the epidemic, even in the presence of low HL. Policy and educational programmes are indicated to meet the information needs of older persons, which are commensurate with the low HL level of a large section of that population.

Research training experience of Vietnamese health sciences undergraduates visiting the Centre for the AIDS Programme of Research in South Africa.

The Centre for the AIDS Programme of Research in South Africa (CAPRISA), performs world-leading research on the epidemiology, pathogenesis, prevention and treatment of HIV/AIDS, tuberculosis, and - more recently - COVID-19. A rigorous yet supportive academic culture has nurtured the careers of many successful health sciences researchers, some of whom have worked for the organization since its inception over 20 years ago. This focus on professional development is founded on a training programme that invests heavily in the individual with the payoff of strengthening the science base for HIV and tuberculosis research in South Africa. Those selected for mentorship are typically medical students from the University of KwaZulu-Natal, adjoining the headquarters of CAPRISA in Durban. Increasingly, however, the institute attracts international fellows from partnering organizations to experience the intellectually demanding, scientifically robust, cutting-edge research environment. The purpose of this voices piece is to narrate and critically evaluate the experience from the dual perspectives of host and visitor of a research training programme undertaken by three undergraduate health sciences students from Vietnam, enrolled at VinUniversity. This was the inaugural running of what is expected to be an annual summer trip to CAPRISA by Hanoi-based medical and nursing students. The formative educational experience in best practice tackling of infectious diseases in challenging clinical contexts demonstrated the importance of investing in research placement programmes for public health impact. The exchange has inspired each student to become a future leader in seeking bold, innovative, and strategic approaches to improve global health issues in their home country.

Knowledge, attitudes and practices regarding HIV/AIDS and STIs among youths and key populations in informal settlements of Nairobi, Kenya.

Kenya is home to one of the worst HIV/AIDS epidemics, with higher prevalence rates in youths in urban slums. We conducted a cross-sectional mixed-methods study in Nairobi informal settlements. The aim was to investigate knowledge, attitudes and behaviours of this marginalized community, and to identify, with a bottom-up approach, the most appropriate interventions to increase the utilization of HIV/STIs services. Preliminary qualitative research was used to draw questionnaires, which assessed: STIs/HIV/AIDS knowledge, attitudes, and behaviours; access and barriers to STIs/HIV/AIDS services; perceived quality of services; the impact of COVID-19. One thousand and fifty-four respondents completed the questionnaire. 48.3% were youth in the community, 23% youth in school, 16.8% young mothers, 6.9% drug users and 5% people attending a technical-vocational training. We found unsatisfactory knowledge of STIs/HIV/AIDS transmission and prevention, and low condom use, mainly due to difficult access, poverty, and gender-based violence. We also found limited use of health services, and lack of trust due to poor attitude of the staff. COVID-19 has widened barriers to access to health services. To reach this population, it is necessary to implement educational interventions, facilitate access to free condoms, and train health centre staff to be more welcoming. Respondents found proximity strategies more efficient, including door-to-door testing and community outreach.

Presidential communication approaches and the impact on public health: a comparative analysis of three South African presidents' communication on AIDS and COVID-19.

The HIV response in the African continent over past decades demonstrates the potency that the words and actions of political leaders have in either expediting or impeding the implementation and adoption of preventive measures at the individual and community levels. The article explores the health communication approaches employed by two South African past presidents (Thabo Mbeki and Jacob Zuma) in responding to the HIV epidemic, and contrasts these with the communicative approach of President Cyril Ramaphosa during the COVID-19 pandemic. Approached from this understanding, this article provides a comparative analysis of the communication approaches of these three presidencies across the two pandemics, and considers the variously trusted sources of top-down, government-driven and bottom-up, community-informed approaches to health communication. Critical lessons that emerged in South Africa during the HIV epidemic regarding the need to include communities in communicating about risks and behaviour change have not been adopted into the COVID-19 response. Political leaders are not best placed to communicate about these issues, and, in the context of pandemics, there is a clear need to reconsider top-down communication approaches that are designed without the participation of communities and ignore the interconnected nature of health and other social determinants of health.

How Antibodies Recognize Pathogenic Viruses: Structural Correlates of Antibody Neutralization of HIV-1, SARS-CoV-2, and Zika.

The H1N1 pandemic of 2009-2010, MERS epidemic of 2012, Ebola epidemics of 2013-2016 and 2018-2020, Zika epidemic of 2015-2016, and COVID-19 pandemic of 2019-2021, are recent examples in the long history of epidemics that demonstrate the enormous global impact of viral infection. The rapid development of safe and effective vaccines and therapeutics has proven vital to reducing morbidity and mortality from newly emerging viruses. Structural biology methods can be used to determine how antibodies elicited during infection or vaccination target viral proteins and identify viral epitopes that correlate with potent neutralization. Here we review how structural and molecular biology approaches have contributed to our understanding of antibody recognition of pathogenic viruses, specifically HIV-1, SARS-CoV-2, and Zika. Determining structural correlates of neutralization of viruses has guided the design of vaccines, monoclonal antibodies, and small molecule inhibitors in response to the global threat of viral epidemics.

Modeling the epidemiological impact of the UNAIDS 2025 targets to end AIDS as a public health threat by 2030.

BACKGROUND: UNAIDS has established new program targets for 2025 to achieve the goal of eliminating AIDS as a public health threat by 2030. This study reports on efforts to use mathematical models to estimate the impact of achieving those targets. METHODS AND FINDINGS: We simulated the impact of achieving the targets at country level using the Goals model, a mathematical simulation model of HIV epidemic dynamics that includes the impact of prevention and treatment interventions. For 77 high-burden countries, we fit the model to surveillance and survey data for 1970 to 2020 and then projected the impact of achieving the targets for the period 2019 to 2030. Results from these 77 countries were extrapolated to produce estimates for 96 others. Goals model results were checked by comparing against projections done with the Optima HIV model and the AIDS Epidemic Model (AEM) for selected countries. We included estimates of the impact of societal enablers (access to justice and law reform, stigma and discrimination elimination, and gender equality) and the impact of Coronavirus Disease 2019 (COVID-19). Results show that achieving the 2025 targets would reduce new annual infections by 83% (71% to 86% across regions) and AIDS-related deaths by 78% (67% to 81% across regions) by 2025 compared to 2010. Lack of progress on societal enablers could endanger these achievements and result in as many as 2.6 million (44%) cumulative additional new HIV infections and 440,000 (54%) more AIDS-related deaths between 2020 and 2030 compared to full achievement of all targets. COVID-19-related disruptions could increase new HIV infections and AIDS-related deaths by 10% in the next 2 years, but targets could still be achieved by 2025. Study limitations include the reliance on self-reports for most data on behaviors, the use of intervention effect sizes from published studies that may overstate intervention impacts outside of controlled study settings, and the use of proxy countries to estimate the impact in countries with fewer than 4,000 annual HIV infections. CONCLUSIONS: The new targets for 2025 build on the progress made since 2010 and represent ambitious short-term goals. Achieving these targets would bring us close to the goals of reducing new HIV infections and AIDS-related deaths by 90% between 2010 and 2030. By 2025, global new infections and AIDS deaths would drop to 4.4 and 3.9 per 100,000 population, and the number of people living with HIV (PLHIV) would be declining. There would be 32 million people on treatment, and they would need continuing support for their lifetime. Incidence for the total global population would be below 0.15% everywhere. The number of PLHIV would start declining by 2023.

How Does the Covid-19 Pandemic Affect the Target 90-90-90?

In 2014, The Joint United Nations Program on HIV and AIDS (UNAIDS) has set an ambitious target code-named 90-90-90, which aims to ensure that 90% of all people living with HIV will know their state, 90% of all people diagnosed will receive sustained antiretroviral therapy, and 90% of all people receiving ART will have viral suppression by 2020. Since 2014, many tests and treatment programs have been developed to achieve the above goals worldwide. In 2019, it was reported that many developed countries can reach the target with the right strategies, as well as regions that are still far from the targets. It has been reported that the fourth 90 should be one of the targets related to HIV infection in recent years. This view, beyond virological suppression, was towards developing programs that would enable people living with HIV to live not only longer but also healthy. The socio-cultural and economic obstacles to reach the targets may vary according to geographical regions, but it is clear that COVID-19 disease, which has taken the whole world under the influence since 2019, is a major obstacle to the 90-90-90 targets worldwide. Difficulties in the diagnosis and access to ART and treatment nonadherence which may be encountered more frequently due to many factors may threaten both the health of people living with HIV and public health. The COVID-19 pandemic has disrupted many programs developed in the fight against the HIV epidemic. Considering COVID-19 disease and future epidemics that may create a chaotic environment, analyzing the difficulties experienced in the pandemic retrospectively, and determining new strategies that will bring appropriate solutions to the problems will play an important role in the proper management of future issues.