- Global Health and One Health 2026
- Chapter 5
Outbreak, funding gap and heat season in fragile health systems
A conditional statement under stated assumptions, never a prediction.
Contents
- ·Edition home
- ·Executive summary
- 1Health is where the systems meet
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Outbreak, funding gap and heat season in fragile health systems
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
5.1Assumptions
Scenario SCN-GS04-OUT-01: what is assumed, and what is held constant.
- Baseline
- the 2026 reference state in this edition
- Drivers
- a zoonotic outbreak with cross-border spread that coincides with reduced external funding and a heat season with high demand on clinics
- Analogues
- the 2026 Bundibugyo outbreak; the 2025 aid reductions5640
- Interventions
- none modelled: the specification describes the unmitigated case
- Run state
- narrative specification; quantified run scheduled for 2027
5.2The cascade, step by step
- 1
BIO → HLT
spillover starts an outbreak; detection is late and deaths occur in communities
2026
- 2
FIN → HLT
external funding gaps limit surveillance, supplies and staff
2025
- 3
CLI → HLT
heat raises demand for care and strains facilities
2023
- 4
HLT → FOO
illness and movement limits reduce labour and market access
analogue
- 5
TRD → HLT
travel and trade measures conflict with health advice
2026
- 6
HLT → FIN
response costs and lost output strain public budgets
analogue
5.3The scenario as a table of steps
How the shock in scenario SCN-GS04-OUT-01 would travel through Global Health and One Health‘s coupled systems, step by step, under the assumptions the edition states.
| Step | What happens | Source |
|---|---|---|
| 01 Biodiversity to health | Spillover starts an outbreak; detection is late and deaths occur in communities. Analogue or source: 2026. | Edition GS-04, scenario SCN-GS04-OUT-01, step 1 |
| 02 Finance to health | External funding gaps limit surveillance, supplies and staff. Analogue or source: 2025. | Edition GS-04, scenario SCN-GS04-OUT-01, step 2 |
| 03 Climate to health | Heat raises demand for care and strains facilities. Analogue or source: 2023. | Edition GS-04, scenario SCN-GS04-OUT-01, step 3 |
| 04 Health to food | Illness and movement limits reduce labour and market access. Analogue or source: analogue. | Edition GS-04, scenario SCN-GS04-OUT-01, step 4 |
| 05 Trade to health | Travel and trade measures conflict with health advice. Analogue or source: 2026. | Edition GS-04, scenario SCN-GS04-OUT-01, step 5 |
| 06 Health to finance | Response costs and lost output strain public budgets. Analogue or source: analogue. | Edition GS-04, scenario SCN-GS04-OUT-01, step 6 |
A teaching model of a conditional scenario under the edition’s stated assumptions: not a forecast, not a prediction and not a warning. Sources: Global Health and One Health 2026, scenario SCN-GS04-OUT-01 (2026); Global Health and One Health 2026, references (NR-CIT-1) (2026).
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 56WHO (ed.), Disease Outbreak News: Ebola disease caused by Bundibugyo virus, Democratic Republic of the Congo (25 September 2026, data to 23 September 2026). World Health Organization, Geneva. Observation year 2026. Accessed 2026-11-03.back
- 40Apeagyei, A.E. et al., Tracking development assistance for health, 1990 to 2030: historical trends, recent cuts, and outlook, The Lancet, 2025; abstract read through Europe PMC. Institute for Health Metrics and Evaluation, Seattle. Observation year 2025 (estimate). Accessed 2026-11-03.back
