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Available online at ajdhs.com 

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Copyright  © 2024 The  Author(s): This is an open-access article distributed under the terms of the CC BY-NC 4.0 
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One Step at a Time: Incremental Approaches to HIV Prevention 

Emmanuel Ifeanyi Obeagu *  

Department of Biomedical and Laboratory Science, Africa University, Zimbabwe 

Article Info: 
_____________________________________________ 
Article History: 

Received   10 Sep 2024     
Reviewed  26 Oct 2024 
Accepted   20 Nov 2024 
Published 15 Dec 2024 

_____________________________________________ 
Cite this article as:  

Obeagu EI, One Step at a Time: Incremental 
Approaches to HIV Prevention, Asian Journal of 
Dental and Health Sciences. 2024; 4(3):5-9                                                                     

DOI: http://dx.doi.org/10.22270/ajdhs.v4i4.91        

Abstract 
_________________________________________________________________________________________________________________ 

HIV prevention remains a global priority, with diverse strategies continuously developed to address 
the needs of high-risk populations. Incremental approaches—emphasizing gradual, step-by-step 
advancements—are gaining traction as an effective method to tailor interventions, increase 
accessibility, and foster long-term engagement. These strategies build on existing resources, adjust 
to unique local contexts, and prioritize community involvement, making them especially impactful in 
resource-limited or culturally diverse settings. By setting measurable, short-term goals, incremental 
approaches offer a sustainable pathway for reducing HIV transmission rates. One significant 
example of incremental HIV prevention is the phased implementation of Pre-Exposure Prophylaxis 
(PrEP), which has shown remarkable results when introduced progressively to high-risk groups. 
Alongside PrEP, behavioral interventions such as safe-sex education and harm reduction for 
injecting drug users are adapted incrementally to shift cultural norms and reduce stigma. Biomedical 
innovations, like microbicides, are similarly introduced in stages, with user feedback and adherence 
monitored to enhance real-world effectiveness. By allowing for community-specific refinements, 
these interventions become more accepted and impactful. 

Keywords: HIV Prevention, Incremental Strategies, PrEP, Behavioral Interventions, Community 
Education 

*Address for Correspondence:   

Emmanuel Ifeanyi Obeagu, Department of Biomedical and Laboratory Science, Africa University, Zimbabwe 

 

Introduction 

The global fight against HIV has seen significant 
advancements over the last few decades, yet HIV 
prevention remains a complex and evolving field. With 
over 38 million people living with HIV worldwide, there 
is a pressing need for prevention strategies that can 
adapt to diverse contexts, particularly in areas with 
limited resources or unique cultural challenges. 
Traditional prevention efforts, such as large-scale public 
health campaigns and one-size-fits-all interventions, 
have been effective to some extent, but have not always 
addressed the nuanced needs of various communities. 
Incremental approaches to HIV prevention—
characterized by gradual, small-scale advancements 
tailored to specific populations—are emerging as a 
promising strategy. These approaches focus on setting 
realistic, short-term objectives that cumulatively 
contribute to long-term reductions in HIV transmission, 
often engaging local communities to foster sustainable 
change.1-2 Incrementalism, as a strategy, is particularly 
valuable in addressing HIV due to the varied risk factors 
and socio-economic contexts that influence 
transmission. Unlike broad, sweeping interventions, 
incremental approaches allow for fine-tuning and 
customization, ensuring that each step aligns with the 
specific needs of the target population. For instance, 
certain high-risk populations—such as men who have 

sex with men (MSM), sex workers, and people who 
inject drugs—require prevention methods that are 
tailored not only to their risk profiles but also to the 
unique social and cultural barriers they may face. By 
employing step-by-step methods, stakeholders can test, 
evaluate, and adjust their strategies incrementally, 
which enhances both efficacy and community 
acceptance.3-4 

A significant advantage of incremental approaches is 
their ability to integrate with existing public health 
systems and leverage current resources. This is 
particularly important in low- and middle-income 
countries, where healthcare infrastructure and funding 
may be limited. Incremental strategies are adaptable 
and cost-effective, often implemented in a way that 
aligns with local healthcare policies and practices. For 
example, the gradual rollout of Pre-Exposure 
Prophylaxis (PrEP) in select high-risk communities has 
allowed for focused education and resource allocation, 
gradually expanding access in a way that manages costs 
and prioritizes areas of greatest need. This approach is 
not only more sustainable but also allows for more 
effective monitoring and evaluation, ensuring that 
resources are being used where they will have the most 
impact.5-6 Behavioral interventions are another 
cornerstone of incremental HIV prevention. Educating 
communities on safe sex practices, reducing stigma, and 

                     Open Access                                                                                                                                                                                                                Review Article                                                                           

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Emmanuel Ifeanyi Obeagu                                                                                                          Asian Journal of Dental and Health Sciences. 2024; 4(4):5-9 

[6]                                                                                                                                                                                                                                              AJDHS.COM 

building awareness about HIV transmission are all 
essential components that can be introduced 
incrementally. By beginning with small-scale, 
community-led sessions, these interventions have the 
potential to shift norms over time, making safer 
practices more acceptable and accessible. The gradual 
introduction of behavioral changes has shown particular 
promise in conservative communities, where initial 
resistance may be high. Incremental approaches allow 
for the development of trust and cultural sensitivity, 
which are critical for long-term success in HIV 
prevention.7-8 

In addition to behavioral interventions, biomedical 
innovations such as microbicides and vaccines are being 
tested and introduced incrementally. Microbicides, for 
instance, have shown potential as topical agents that 
reduce the risk of HIV transmission. By introducing 
these products in pilot programs and refining their 
formulations based on user feedback, researchers and 
healthcare providers can incrementally improve the 
efficacy and accessibility of such biomedical solutions. 
The incremental introduction of these products also 
allows communities to adapt gradually, ensuring that 
new technologies are better received and utilized over 
time. This staged approach fosters confidence in 
biomedical solutions and can ultimately lead to higher 
adherence and greater protection.9-10 Finally, 
community involvement is central to the success of 
incremental approaches in HIV prevention. Grassroots 
organizations and local partnerships are often the 
driving force behind incremental changes, as they 
understand the unique needs of their communities and 
can implement prevention strategies in a culturally 
sensitive manner. Local involvement ensures that 
interventions are relevant and accepted, which 
significantly improves their sustainability and 
effectiveness. By engaging communities in the design 
and implementation of prevention measures, 
incremental approaches build a foundation of trust and 
empowerment, essential elements in any successful 
public health initiative.11-12 

The Concept of Incremental Approaches in HIV 
Prevention 

The incremental approach in HIV prevention is 
grounded in the principle of achieving change through 
small, successive steps that cumulatively contribute to 
substantial outcomes. Unlike comprehensive, large-scale 
interventions, incrementalism emphasizes gradual 
progress, adjusting strategies based on observed 
outcomes and community feedback at each stage. This 
approach is particularly beneficial in the context of HIV, 
where diverse populations with varied risk profiles and 
cultural sensitivities often require tailored 
interventions. By setting achievable short-term goals, 
incremental strategies create momentum that builds 
trust within communities, allows for careful resource 
allocation, and enhances the overall sustainability of 
prevention efforts.13-14 Incremental approaches are 
distinguished by their adaptability, which allows 
programs to be tailored to the unique needs and 
capacities of each target group. For instance, 

introducing Pre-Exposure Prophylaxis (PrEP) 
incrementally—first to high-risk groups in areas with 
significant HIV prevalence—enables public health 
officials to gauge the community’s acceptance, address 
initial barriers, and refine the program for broader 
rollouts. This step-by-step approach helps in identifying 
potential challenges, such as adherence issues, stigma, 
or logistical constraints, and in addressing them before 
scaling up. Such an approach ensures that HIV 
prevention interventions are not only evidence-based 
but also culturally sensitive and contextually 
appropriate, which increases the likelihood of long-term 
success.15-16 Another core advantage of incremental HIV 
prevention is its focus on community involvement and 
empowerment. By breaking down large objectives into 
smaller, manageable interventions, incremental 
approaches foster a sense of ownership among local 
stakeholders, which is crucial for sustained engagement 
and behavioral change. Community-led initiatives, such 
as peer education programs or localized awareness 
campaigns, can be gradually expanded as they gain 
traction and acceptance. This progressive build-up 
strengthens community trust and resilience, making HIV 
prevention a collaborative endeavor. Additionally, 
incremental approaches allow for real-time learning, 
where successful elements of a program can be 
expanded upon, and less effective aspects can be 
modified or replaced, optimizing resources and 
fostering sustainable impact in HIV prevention.17-18 

Key Incremental Approaches to HIV Prevention 

Several incremental strategies have emerged as 
impactful methods to address the diverse and evolving 
challenges of HIV prevention. These approaches span 
biomedical, behavioral, and structural interventions, 
with each offering distinct yet complementary benefits. 
The following are some key incremental approaches in 
the realm of HIV prevention: 

1. Gradual Rollout of Pre-Exposure Prophylaxis 
(PrEP) 

PrEP has proven to be one of the most effective 
biomedical tools for preventing HIV, particularly among 
high-risk populations such as men who have sex with 
men (MSM), sex workers, and people who inject drugs. 
An incremental approach to PrEP introduction allows 
for targeted rollouts, beginning with high-prevalence 
areas and populations most vulnerable to HIV. Starting 
with pilot programs, health officials can monitor uptake, 
adherence, and potential side effects, while also 
engaging communities to address stigma and 
misinformation. As the program gains acceptance, PrEP 
distribution can be gradually expanded, with 
adaptations made based on observed challenges and 
successes, such as integrating PrEP services into 
broader healthcare settings.19-20 

2. Phased Implementation of Harm Reduction 
Programs 

Harm reduction, particularly for people who inject 
drugs, is another critical area where incremental 
approaches are beneficial. This includes the stepwise 
introduction of needle exchange programs, safe 



Emmanuel Ifeanyi Obeagu                                                                                                          Asian Journal of Dental and Health Sciences. 2024; 4(4):5-9 

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injection sites, and education on safer drug use 
practices. By incrementally implementing these 
services, public health agencies can work with local 
communities to gauge acceptance, reduce stigma, and 
address legal or social barriers. With each phase, 
monitoring data informs adjustments to services, 
ensuring they are culturally appropriate and effectively 
reduce transmission risk without alienating the target 
population.20-21 

3. Step-by-Step Introduction of Behavioral 
Interventions 

Behavioral interventions, such as safe-sex education and 
condom distribution, are often more effective when 
gradually introduced. Starting with small, targeted 
campaigns in schools, community centers, or among at-
risk groups, these interventions can be expanded based 
on their effectiveness and community feedback. By 
beginning with informational sessions and low-stakes 
workshops, communities can learn to understand and 
normalize safer practices at their own pace. Gradually, 
these sessions evolve into comprehensive prevention 
programs, potentially including partnerships with local 
organizations to reinforce the message and reach a 
wider audience.22-23 

4. Incremental Development and Testing of 
Microbicides 

Microbicides, topical agents designed to reduce HIV 
transmission risk during sexual activity, represent 
another promising prevention method that benefits 
from an incremental approach. Starting with small-scale 
clinical trials and pilot programs in high-risk areas, 
microbicides can be tested for safety, efficacy, and 
acceptability. By introducing these products 
incrementally, researchers and health workers can 
refine formulations and usage guidelines based on user 
feedback and adherence patterns, eventually making 
them available on a larger scale once their efficacy and 
safety profiles are confirmed.24-25 

5. Progressive Policy Change and Legal Reforms 

Structural and policy-level interventions are essential to 
create an enabling environment for HIV prevention. 
However, implementing these changes incrementally 
can be more effective than attempting comprehensive 
reform at once, particularly in regions where stigma or 
legal restrictions pose significant challenges. For 
example, decriminalizing same-sex relationships or 
providing legal protections for sex workers and people 
who inject drugs can be phased in incrementally to 
foster societal acceptance. Such stepwise policy shifts 
allow communities to adjust progressively, reducing 
backlash and enhancing support for prevention 
programs by gradually changing public attitudes and 
legal landscapes.26-27 

6. Digital Health Tools for Incremental Outreach 
and Education 

Digital health platforms, such as mobile health apps, 
online counseling, and social media campaigns, offer 
opportunities for incremental outreach, particularly in 
settings where face-to-face interactions may be limited 

by stigma or geographic constraints. Starting with basic 
educational content or virtual consultations, these tools 
can slowly introduce more interactive services, such as 
telemedicine for PrEP counseling or virtual support 
groups. Over time, digital platforms can be expanded to 
provide more comprehensive support, empowering 
individuals to seek information and care at their own 
pace and fostering a supportive online community for 
HIV prevention.28 

Challenges of Incremental Approaches 

While incremental approaches offer a promising path to 
HIV prevention, they also come with several challenges 
that can impact their effectiveness. Understanding and 
addressing these obstacles is essential for successfully 
implementing incremental strategies on a larger scale. 

1. Resource and Funding Constraints 

Incremental approaches require sustained resources 
and long-term funding commitments, which can be 
challenging to secure. Gradual interventions often need 
consistent monitoring, evaluation, and adaptation, all of 
which require ongoing financial support. Additionally, 
incremental strategies may appear slower to yield 
significant results compared to large-scale programs, 
potentially leading to funding agencies and stakeholders 
questioning their effectiveness. As a result, securing 
continuous support for stepwise programs, especially in 
resource-limited settings, can be challenging and may 
hinder the long-term sustainability of these efforts.29 

2. Potential for Limited Impact in Early Stages 

Incremental approaches are typically gradual and may 
take time before substantial results are visible. For 
example, small pilot programs or targeted PrEP rollouts 
in specific populations might initially only reach a 
limited number of people, resulting in modest declines 
in HIV transmission rates. This limited initial impact can 
lead to skepticism among policymakers, funders, and 
communities about the effectiveness of the approach. 
Without visible, short-term outcomes, it may be 
challenging to justify expanding incremental 
interventions or gaining broader community support.30 

3. Complex Monitoring and Evaluation Needs 

One of the hallmarks of incremental approaches is the 
need for continuous monitoring, feedback, and 
adaptation. Implementing interventions in phases 
requires careful tracking of progress, outcomes, and 
community responses to ensure each stage is effective 
before expanding further. However, this need for 
detailed data and regular assessment can place a strain 
on resources, especially in regions with limited 
infrastructure for data collection and analysis. 
Insufficient or inconsistent monitoring can undermine 
the effectiveness of incremental approaches, potentially 
resulting in unaddressed issues or inadequate 
improvements at each stage.31 

4. Risk of Resistance and Stigma in Certain 
Communities 

While incremental approaches aim to increase 
community acceptance, they can still face resistance or 



Emmanuel Ifeanyi Obeagu                                                                                                          Asian Journal of Dental and Health Sciences. 2024; 4(4):5-9 

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stigma, particularly in conservative or marginalized 
communities. Programs targeting specific populations, 
such as people who inject drugs or the LGBTQ+ 
community, may encounter resistance due to prevailing 
social norms and discrimination. Incremental steps may 
not be sufficient to overcome entrenched stigma, and 
limited progress in changing attitudes can slow down 
the expansion of these programs. Additionally, this 
approach requires building trust over time, which can 
be challenging if initial efforts are met with suspicion or 
resistance.32 

5. Balancing Adaptation with Consistency 

Incremental approaches must strike a balance between 
adapting interventions based on local feedback and 
maintaining consistency to achieve intended outcomes. 
Frequent adaptations can lead to changes in the delivery 
or focus of programs, which can confuse participants or 
disrupt continuity. For example, if a PrEP program 
repeatedly modifies access points or eligibility criteria 
in response to community feedback, individuals might 
struggle to stay engaged. This balancing act requires 
skillful management to ensure that interventions 
remain accessible and effective without causing 
confusion or frustration among the target population.33 

6. Risk of Fragmentation in HIV Prevention Efforts 

Incremental approaches focus on specific populations 
and locations, which can create a fragmented HIV 
prevention landscape where some communities receive 
robust support while others are left behind. For 
example, if PrEP rollout focuses on urban high-risk 
populations first, rural or lower-risk areas may 
experience delays in access to the same preventive 
resources. This fragmented approach can lead to 
disparities in prevention efforts, with some regions or 
populations progressing faster than others. 
Coordinating incremental interventions to ensure 
equitable access and avoiding gaps in coverage is a 
significant challenge for HIV prevention programs.33 

Conclusion 

Incremental approaches to HIV prevention offer a 
pragmatic and adaptive framework for addressing the 
complexities of the HIV epidemic. By emphasizing 
gradual, step-by-step interventions, these strategies can 
cater to diverse populations and adjust to the varying 
social, cultural, and economic contexts in which HIV 
persists. The flexibility inherent in incremental methods 
enables health programs to refine their approaches over 
time, allowing for real-time learning and community-
centered adjustments that increase acceptance and 
effectiveness. This patient and deliberate expansion can 
foster trust, reduce stigma, and ensure that 
interventions are sustainable and responsive to actual 
needs. 

Conflict of Interest: Author declares no potential 

conflict of interest with respect to the contents, 

authorship, and/or publication of this article. 

Source of Support: Nil 

Funding: The authors declared that this study has 

received no financial support. 

Informed Consent Statement: Not applicable.  

Data Availability Statement: The data supporting in 

this paper are available in the cited references.  

Ethics approval: Not applicable. 

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