rVSV-ZEBOV reached ring-vaccination deployment only after the epidemic's first year
Dated 1 March 2015: rVSV-ZEBOV reached ring-vaccination deployment only after the epidemic's first year. In the causal graph this event weakens Ebola outbreak response architecture, a driver that weakens Universal health coverage (UHC) service coverage index, 2025 methodology — an improving welfare path.
Who was responsible
Contribution type and responsibility level for each recorded actor — not sole-author shorthand.
No public contributors are listed for this fact.
What changed
Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.
- FactrVSV-ZEBOV reached ring-vaccination deployment only after the epidemic's first year
- weakensDriverEbola outbreak response architecture
- weakensIndicators (2)Universal health coverage (UHC) service coverage index, 2025 methodology
provisional weight · verified
Weakens · 55% impact strength (driver → indicator)
Observed
71 INDEX · 0.25 above the normal line (2023)
Better than normal6 readings, 2018–2023: rose from 69 INDEX to 71 INDEX.
Above normal = better
Strengthens · 50% impact strength (driver → indicator)
Observed
37.4 deaths per 1,000 live births · 12.4 above the normal line (2024)
Worse than normal7 readings, 2018–2024: fell from 40 deaths per 1,000 live births to 37.4 deaths per 1,000 live births.
Above normal = worse
Causal path
How this event connects to drivers and indicators in the graph.
- FactrVSV-ZEBOV reached ring-vaccination deployment only after the epidemic's first year
- weakensDriverEbola outbreak response architecture
- weakensIndicatorUniversal health coverage (UHC) service coverage index, 2025 methodology
Cite this page
Factrail. (2026). rVSV-ZEBOV reached ring-vaccination deployment only after the epidemic's first year. Factrail. https://factrail.ai/facts/rsv-zebov-vaccine-reached-ring-vaccination-trial-after-first-year-of-west-africa-epidemic-2015
Accessed 16 October 2026.
By the Factrail desk · Method: how we source and score · Last reviewed
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