Call for case studies on integrated service delivery for HIV, TB, Hepatitis and STIs

1 April 2026 | Geneva  The World Health Organization (WHO) is issuing a call for case studies on integrated service delivery for HIV, tuberculosis (TB), hepatitis and sexually transmitted infections (STIs). This call aims to gather examples of how integrated service delivery is implemented in practice. The case studies will help to illustrate how services are organized, delivered, and coordinated across settings, and to highlight lessons that can inform design and implementation of models of integrated service delivery.

Countries are increasingly adopting integrated approaches to deliver services for HIV, TB, hepatitis and STIs, often in combination with other essential health services aligned with primary health care approach (PHC). These approaches aim to improve access, continuity, efficiency, and quality of care by organizing services around people’s needs while also addressing the requirements for addressing specific diseases.

However, translating integrated approaches into practice at the point of care remains challenging. Services are often delivered through disease-specific workflows, financing and reporting arrangements, with limited operational guidance on how to organize and coordinate care across different conditions. These operational challenges are compounded by workforce constraints, gaps in diagnostics and commodities, and fragmented digital tools, limiting continuity and quality of care.

As part of efforts to address these challenges, WHO is developing a guidance on integrated service delivery for HIV, TB, hepatitis and STIs. To inform the content of this guidance, WHO is inviting submissions of case studies describing practical, real-world experiences of integrated service delivery at the facility, community, or outreach level.

What we are looking for: 

The case studies should describe integration of services for at least one of these conditions: HIV, TB, hepatitis or STIs, and may cover one or more of the following aspects:

• integration across multiple diseases (e.g. HIV, TB, hepatitis, and/or STIs), and/or
• integration with other health services such as sexual and reproductive health, non-communicable diseases, mental health, harm reduction, and/or
• integration with non-health services that address social, legal or economic needs that influence health outcomes.

Please address the following areas in your submission:

Context and setting

Briefly describe the epidemiological and programme context in which the integrated model was implemented (e.g. disease burden, co-infections, programme maturity, urban/rural setting or populations groups served).

Services delivered

• Which services are being provided in an integrated manner?
• Who are the primary populations served (e.g. general population, adolescents, key populations, other people at high risk or in vulnerable situations, pregnant women)?
• At which points along the continuum of care does integration occur (e.g. prevention, screening, diagnosis, treatment, follow-up)?

Service delivery setting(s)

• Where are the services delivered (e.g. primary care facilities, hospitals, antenatal clinics, community-based service delivery points, outreach services, drop-in centres, digital platforms, including virtual (remote service delivery)?
• What were the enablers or barriers to service integration in the setting (e.g. staffing, available diagnostics, physical space, operating hours)?

Organization and flow of care

• Which services are delivered within a single patient visit (i.e. without requiring the person to return on a different day), and which services are delivered through multiple encounters across visits or locations?
• How are referrals, follow-up, and continuity of care managed, including the integration of services for acute or episodic conditions (e.g. TB, STIs) with chronic conditions (e.g. HIV, non-communicable diseases)?

Roles and delivery arrangements

• Who provides the services (e.g. nurses, doctors, lay or peer providers, community health workers)?
• Are task-sharing (i.e. delegation of specific tasks across different provider types) or team-based approaches (i.e. coordinated roles across multiple providers) used, and if so, how?

Implementation experience and lessons learned

• What has worked well in your model(s)?
• What factors enabled successful implementation of the model(s) (e.g. policies, leadership, workforce capacity, financing, partnerships, community engagement, or data systems)?
• What challenges, trade-offs, or unintended effects were encountered during implementation?
• What positive outcomes have been observed?
• What adaptations were needed to make integration feasible in your local context?

Scope and inclusion criteria:

• Case studies must describe models or intervention that have been, or are being implemented or piloted, and not initiatives that are planned or still at conception phase.
• The focus should be on describing service delivery at the point of care, rather than on high-level policy or governance reforms alone.
• Facility-based, community-based, outreach models and other service delivery arrangements are welcome.

Submission details:

Please submit your case study to: NSP4HTH@who.int

For questions or clarifications related to the scope and content of this call, please contact: parwatic@who.int

Deadline: 1 May 2026, 23:59 CEST

Submissions will be accepted in any of the WHO working languages (Arabic, Chinese, English, French, Russian and Spanish).