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"Venter, Francois"
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Besluitneming in die Gereformeerde Kerkverband
2024
Decision-making in the Reformed Churches in South AfricaThe hypothesis for this article is that no complete certainty can exist on whether a resolution taken by a meeting of people is an authoritative expression of the will of God. The church [ekklésia] of Christ refers to the universal church of all times and places, as well as the local church (congregation). The general nature of collective decision-making involves the notions of representation and voting. The Reformation liberated churches from the overlordship of Rome, but also had the unintended consequence of the entrenchment of the liberal notions of individual sovereignty and self-sufficiency. The foundational Reformed confessional documents were formulated and adopted at gatherings convened and overseen by extra-clerical (state) institutions. It is likely that decision-making in the churches was directly influenced by the rationalism, humanism, and liberalism that has been influential since the 17th century. Contemporary participants in collective decision-making can find it difficult to distinguish between liberal-democratic processes and those of the church. Christ is the only head of his church and exegesis and hermeneutics are not exact sciences, it is, however, possible to deliberate on alternative Scriptural interpretations, but impossible to prove one to be correct and the other false. The inability of a major assembly of churches to resolve an exegetical question unanimously, attests to the human inability to know the will of God completely. Resolutions of major assemblies should be subject to unrestricted revision as the assemblies are not meetings of a church or of the church itself. Influential opinions among Reformed authors hover between independentism and collegialism, both having been influenced by liberal thinking.ContributionA range of interdependent matters need to be clarified to resolve questions concerning representation in and decision-making by major assemblies. A list of such questions has been set out at the end of the article.
Journal Article
Working at Cross-PURPOSEs to Ending HIV
2025
Almost 15 years ago, the results of the Preexposure Prophylaxis Initiative (iPrEx) trial, which showed the efficacy of oral antiretroviral agents as preexposure prophylaxis (PrEP), were reported in the
Journal
.
1
However, only 15% of persons who would benefit from PrEP currently receive it.
2
The recent modest fall in the global incidence of human immunodeficiency virus (HIV) infection obscures the ongoing epidemic among key populations in high-income, middle-income, and low-income countries, including continued high infection rates among young women in southern Africa. The United Nations 2030 prevention targets will not be met unless something different is done, and soon. The results . . .
Journal Article
HIV epidemiology, prevention, treatment, and implementation strategies for public health
by
Mody, Aaloke
,
Sohn, Annette H
,
Tan, Rayner K J
in
Acquired immune deficiency syndrome
,
AIDS
,
COVID-19
2024
The global HIV response has made tremendous progress but is entering a new phase with additional challenges. Scientific innovations have led to multiple safe, effective, and durable options for treatment and prevention, and long-acting formulations for 2-monthly and 6-monthly dosing are becoming available with even longer dosing intervals possible on the horizon. The scientific agenda for HIV cure and remission strategies is moving forward but faces uncertain thresholds for success and acceptability. Nonetheless, innovations in prevention and treatment have often failed to reach large segments of the global population (eg, key and marginalised populations), and these major disparities in access and uptake at multiple levels have caused progress to fall short of their potential to affect public health. Moving forward, sharper epidemiologic tools based on longitudinal, person-centred data are needed to more accurately characterise remaining gaps and guide continued progress against the HIV epidemic. We should also increase prioritisation of strategies that address socio-behavioural challenges and can lead to effective and equitable implementation of existing interventions with high levels of quality that better match individual needs. We review HIV epidemiologic trends; advances in HIV prevention, treatment, and care delivery; and discuss emerging challenges for ending the HIV epidemic over the next decade that are relevant for general practitioners and others involved in HIV care.
Journal Article
HIV pre-exposure prophylaxis and early antiretroviral treatment among female sex workers in South Africa: Results from a prospective observational demonstration project
by
Saayman, Elaine
,
Moorhouse, Michelle
,
Venter, W. D. Francois
in
Acquired immune deficiency syndrome
,
AIDS
,
Analysis
2017
Operational research is required to design delivery of pre-exposure prophylaxis (PrEP) and early antiretroviral treatment (ART). This paper presents the primary analysis of programmatic data, as well as demographic, behavioural, and clinical data, from the TAPS Demonstration Project, which offered both interventions to female sex workers (FSWs) at 2 urban clinic sites in South Africa.
The TAPS study was conducted between 30 March 2015 and 30 June 2017, with the enrolment period ending on 31 July 2016. TAPS was a prospective observational cohort study with 2 groups receiving interventions delivered in existing service settings: (1) PrEP as part of combination prevention for HIV-negative FSWs and (2) early ART for HIV-positive FSWs. The main outcome was programme retention at 12 months of follow-up. Of the 947 FSWs initially seen in clinic, 692 were HIV tested. HIV prevalence was 49%. Among those returning to clinic after HIV testing and clinical screening, 93% of the women who were HIV-negative were confirmed as clinically eligible for PrEP (n = 224/241), and 41% (n = 110/270) of the women who were HIV-positive had CD4 counts within National Department of Health ART initiation guidelines at assessment. Of the remaining women who were HIV-positive, 93% were eligible for early ART (n = 148/160). From those eligible, 98% (n = 219/224) and 94% (n = 139/148) took up PrEP and early ART, respectively. At baseline, a substantial fraction of women had a steady partner, worked in brothels, and were born in Zimbabwe. Of those enrolled, 22% on PrEP (n = 49/219) and 60% on early ART (n = 83/139) were seen at 12 months; we observed high rates of loss to follow-up: 71% (n = 156/219) and 30% (n = 42/139) in the PrEP and early ART groups, respectively. Little change over time was reported in consistent condom use or the number of sexual partners in the last 7 days, with high levels of consistent condom use with clients and low use with steady partners in both study groups. There were no seroconversions on PrEP and 7 virological failures on early ART among women remaining in the study. Reported adherence to PrEP varied over time between 70% and 85%, whereas over 90% of participants reported taking pills daily while on early ART. Data on provider-side costs were also collected and analysed. The total cost of service delivery was approximately US$126 for PrEP and US$406 for early ART per person-year. The main limitations of this study include the lack of a control group, which was not included due to ethical considerations; clinical study requirements imposed when PrEP was not approved through the regulatory system, which could have affected uptake; and the timing of the implementation of a national sex worker HIV programme, which could have also affected uptake and retention.
PrEP and early ART services can be implemented within FSW routine services in high prevalence, urban settings. We observed good uptake for both PrEP and early ART; however, retention rates for PrEP were low. Retention rates for early ART were similar to retention rates for the current standard of care. While the cost of the interventions was higher than previously published, there is potential for cost reduction at scale. The TAPS Demonstration Project results provided the basis for the first government PrEP and early ART guidelines and the rollout of the national sex worker HIV programme in South Africa.
Journal Article
Predictors of Treatment Adherence and Virological Failure Among People Living with HIV Receiving Antiretroviral Therapy in a South African Rural Community: A Sub-study of the ITREMA Randomised Clinical Trial
by
de Wit, John B. F
,
Francois Venter, W. D
,
Gumede, Siphamandla B
in
Adherence
,
Antiretroviral agents
,
Antiretroviral drugs
2023
A large proportion of people living with HIV (PLHIV) in sub-Saharan Africa reside in rural areas. Knowledge of enablers and barriers of adherence to antiretroviral treatment (ART) in these populations is limited. We conducted a cohort study of 501 adult PLHIV on ART at a rural South African treatment facility as a sub-study of a clinical trial (ClinicalTrials.gov NCT03357588). Socio-economic, psychosocial and behavioral characteristics were assessed as covariates of self-reported adherence difficulties, suboptimal pill count adherence and virological failure during 96 weeks of follow-up. Male gender was an independent risk factor for all outcomes. Food insecurity was associated with virological failure in males. Depressive symptoms were independently associated with virological failure in both males and females. Household income and task-oriented coping score were protective against suboptimal pill-count adherence. These results underscore the impact of low household income, food insecurity and depression on outcomes of ART in rural settings and confirm other previously described risk factors. Recognition of these factors and targeted adherence support strategies may improve patient health and treatment outcomes.
Journal Article
Slow and Steady But Not Related to HIV Stigma: Physical Activity in South Africans Living with HIV and Chronic Pain
by
Wadley, Antonia
,
Pincus, Tamar
,
Moorhouse, Michelle
in
Accelerometers
,
Antiretroviral agents
,
Antiretroviral drugs
2023
HIV stigma may influence physical activity in people living with HIV (PLWH) and chronic pain. We prospectively examined the relationship between stigma, activity and chronic pain in a convenience sample of PLWH initiating antiretroviral therapy in an inner-city clinic in Johannesburg, South Africa. Participants wore accelerometers to measure daily duration and intensity of activity for 2 weeks. Stigma was assessed with the Revised HIV Stigma Scale. Participants [n = 81, 89% female, age mean (SD) 42 (8)] were active for a median of 7 h daily (IQR 5.2, 9.2), but at very low intensity, equivalent to a slow walk [median (IQR): 0.39 m s−1 (0.33, 0.50)]. Duration and intensity of activity was not associated with stigma, even after controlling for age, self-assessed wealth, pain intensity and willingness to engage in physical activity (p-values > 0.05). As stigma did not associate with greater activity, drivers of sustained activity in South African PLWH remain unclear.
Journal Article
Pre-exposure prophylaxis (PrEP) in an era of stalled HIV prevention: Can it change the game?
by
Venter, Francois
,
Rees, Helen
,
Eakle, Robyn
in
Antibodies
,
Biomedical and Life Sciences
,
Biomedical prevention products
2018
Pre-exposure prophylaxis (PrEP) for HIV prevention has evolved significantly over the years where clinical trials have now demonstrated the efficacy of oral PrEP, and the field is scaling-up implementation. The WHO and UNAIDS have made PrEP implementation a priority for populations at highest risk, and several countries have developed guidelines and national plans accordingly, largely based on evidence generated by demonstration projects. PrEP presents the opportunity to change the face of HIV prevention by offering a new option for protection against HIV and disrupting current HIV prevention systems. Nevertheless, as with all new technologies, both practical and social requirements for implementation must be taken into account if there is to be sustained and widespread adoption, which will also apply to forthcoming prevention technologies. Defining and building success for PrEP within the scope of scale-up requires careful consideration. This review summarises where the PrEP field is today, lessons learned from the past, the philosophy and practicalities of how successful programming may be defined, and provides perspectives of costs and affordability. We argue that a successful PrEP programme is about effective intervention integration and ultimately keeping people HIV negative.
Journal Article
Immune activation correlates with and predicts CXCR4 co-receptor tropism switch in HIV-1 infection
2020
HIV-1 cell entry is mediated by binding to the CD4-receptor and chemokine co-receptors CCR5 (R5) or CXCR4 (X4). R5-tropic viruses are predominantly detected during early infection. A switch to X4-tropism often occurs during the course of infection. X4-tropism switching is strongly associated with accelerated disease progression and jeopardizes CCR5-based HIV-1 cure strategies. It is unclear whether host immunological factors play a causative role in tropism switching. We investigated the relationship between immunological factors and X4-tropism in a cross-sectional study in HIV-1 subtype C (HIV-1C)-infected patients and in a longitudinal HIV-1 subtype B (HIV-1B) seroconverter cohort. Principal component analysis identified a cluster of immunological markers (%HLA-DR
+
CD4
+
T-cells, %CD38
+
HLA-DR
+
CD4
+
T-cells, %CD38
+
HLA-DR
+
CD8
+
T-cells, %CD70
+
CD4
+
T-cells, %CD169
+
monocytes, and absolute CD4
+
T-cell count) in HIV-1C patients that was independently associated with X4-tropism (aOR 1.044, 95% CI 1.003–1.087, p = 0.0392). Analysis of individual cluster contributors revealed strong correlations of two markers of T-cell activation (%HLA-DR
+
CD4
+
T-cells, %HLA-DR
+
CD38
+
CD4
+
T-cells) with X4-tropism, both in HIV-1C patients (p = 0.01;p = 0.03) and HIV-1B patients (p = 0.0003;p = 0.0001). Follow-up data from HIV-1B patients subsequently revealed that T-cell activation precedes and independently predicts X4-tropism switching (aHR 1.186, 95% CI 1.065–1.321, p = 0.002), providing novel insights into HIV-1 pathogenesis and CCR5-based curative strategies.
Journal Article
Leveraging community pharmacies for HIV services in South Africa: Opportunities and constraints
by
Nyamuzihwa, Tsitsi
,
Miot, Jacqui
,
Venter, Francois W.D.
in
Analysis
,
Antiretroviral drugs
,
Antiretroviral therapy
2025
Access to HIV services in South Africa remains challenging, despite their availability in the public healthcare sector. While the legislative framework allows for the provision of these services in community pharmacies, the process is often complex.This article describes various models for the provision of HIV services in community pharmacies in South Africa through a review of existing policies and legislation. It further discusses barriers and opportunities for the expansion of services.The existing legal framework enables prescribing by healthcare professionals other than medical practitioners through authorisations issued under either the Medicines and Related Substances Act of 1965 or the Nursing Act of 2005.Community pharmacies have extended their role beyond dispensing medication, with the emergence of telehealth and potential initiatives such as Pharmacist-Initiated Management of Antiretroviral Therapy (PIMART). Telehealth, accelerated by the COVID-19 pandemic, provides remote consultations and electronic prescriptions. PIMART, on the other hand, can empower pharmacists to initiate and manage antiretroviral therapy (ART) for HIV patients, a role traditionally reserved for clinicians. Extending Nurse-Initiated Management of Antiretroviral Therapy (NIMART) into the private sector could further increase ART rollout.Despite these advancements made in the last two decades, legislative reforms are necessary to fully realise the potential of community pharmacies for providing HIV services.
Journal Article
Impacts of climate change on health and wellbeing in South Africa
by
Wright, Caradee Y.
,
Erasmus, Barend
,
Scorgie, Fiona
in
Accords
,
Air pollution
,
Climate Change
2018
Given its associated burden of disease, climate change in South Africa could be reframed as predominately a health issue, one necessitating an urgent health-sector response. The growing impact of climate change has major implications for South Africa, especially for the numerous vulnerable groups in the country. We systematically reviewed the literature by searching PubMed and Web of Science. Of the 820 papers screened, 34 were identified that assessed the impacts of climate change on health in the country. Most papers covered effects of heat on health or on infectious diseases (20/34; 59%). We found that extreme weather events are the most noticeable effects to date, especially droughts in theWestern Cape, but rises in vector-borne diseases are gaining prominence. Climate aberration is also linked in myriad ways with outbreaks of food and waterborne diseases, and possibly with the recent Listeria epidemic. The potential impacts of climate change on mental health may compound the multiple social stressors that already beset the populace. Climate change heightens the pre-existing vulnerabilities of women, fishing communities, rural subsistence farmers and those living in informal settlements. Further gender disparities, eco-migration and social disruptions may undermine the prevention—but also treatment—of HIV. Our findings suggest that focused research and effective use of surveillance data are required to monitor climate change’s impacts; traditional strengths of the country’s health sector. The health sector, hitherto a fringe player, should assume a greater leadership role in promoting policies that protect the public’s health, address inequities and advance the country’s commitments to climate change accords.
Journal Article