Species breadth is a preparedness metric: lessons from the 2026 Bundibugyo virus disease outbreak.
- 1Faculty of Medicine and Surgery, Somali National University, Mogadishu, Somalia.
- 2Banadir Research Consultancy & Evaluation Center, Mogadishu, Somalia.
Abstract
Recent outbreaks of non-Zaire orthoebolaviruses have exposed a persistent weakness in outbreak preparedness: diagnostic, vaccine, therapeutic, regulatory, and research systems remain disproportionately optimized for Ebola virus (EBOV). The 2026 Bundibugyo virus disease outbreak in the Democratic Republic of the Congo and Uganda illustrates the consequences of this species restriction. Initial testing with an EBOV-focused assay was negative, whereas broader molecular testing and genomic sequencing subsequently confirmed Bundibugyo virus, highlighting a gap between clinical suspicion and species coverage. This Commentary proposes an auditable species-breadth profile across four preparedness domains: diagnostics, vaccines, therapeutics, and evidence generation. For a minimum audit covering EBOV, Sudan virus, and Bundibugyo virus, each domain can be scored from 0/3 to 3/3 using predefined criteria for deployable detection, countermeasure availability, access pathways, and the capacity to initiate rigorous research during an outbreak. Species-breadth assessments should be integrated with specimen referral, genomic sequencing, cross-border surveillance, responder protection, community engagement, and contingency financing. Preparedness should, therefore, be judged not only by the availability of tools for one Ebola virus species, but by the ability of surveillance, diagnostics, countermeasures, and research systems to respond rapidly to whichever pathogenic orthoebolavirus emerges next.
Related
- One Health preparedness for Ebola disease caused by Bundibugyo virus: lessons from the 2026 outbreak centred in the Democratic Republic of the Congo.
- Size of the 2026 Ebola outbreak and risk of cross-border spillover from Bundibugyo virus in Ituri Province, DR Congo, and its implications for preparedness: a recalibrated stochastic modelling study
- Importation risk and preparedness priorities across Africa in the 2026 Bundibugyo Ebola outbreak
- Modeled Scenario Projections for the Ebola Disease Outbreak Caused by Bundibugyo Virus, 2026
- Notes from the Field: Outbreak of Ebola Disease Caused by Bundibugyo Virus — Democratic Republic of the Congo and Uganda, May 2026
BibTeX
@article{hassan2026species,
title = {{Species breadth is a preparedness metric: lessons from the 2026 Bundibugyo virus disease outbreak.}},
author = {Ayan Mohamed Hassan and Abdullahi Abdi Yusuf and Adan Mohamed Hirsi and Ilyas Abdullahi Khalif and Ayaan Axmed Maxamed and Deka Ahmed Abdi},
journal = {Emerging microbes \& infections},
year = {2026},
month = oct,
doi = {10.1080/22221751.2026.2744490},
url = {https://europepmc.org/article/MED/42831485},
note = {CC BY},
}
RIS
TY - JOUR
TI - Species breadth is a preparedness metric: lessons from the 2026 Bundibugyo virus disease outbreak.
AU - Ayan Mohamed Hassan
AU - Abdullahi Abdi Yusuf
AU - Adan Mohamed Hirsi
AU - Ilyas Abdullahi Khalif
AU - Ayaan Axmed Maxamed
AU - Deka Ahmed Abdi
PY - 2026
DA - 2026/10/12
JO - Emerging microbes & infections
DO - 10.1080/22221751.2026.2744490
UR - https://europepmc.org/article/MED/42831485
AB - Recent outbreaks of non-Zaire orthoebolaviruses have exposed a persistent weakness in outbreak preparedness: diagnostic, vaccine, therapeutic, regulatory, and research systems remain disproportionately optimized for Ebola virus (EBOV). The 2026 Bundibugyo virus disease outbreak in the Democratic Republic of the Congo and Uganda illustrates the consequences of this species restriction. Initial testing with an EBOV-focused assay was negative, whereas broader molecular testing and genomic sequencing subsequently confirmed Bundibugyo virus, highlighting a gap between clinical suspicion and species coverage. This Commentary proposes an auditable species-breadth profile across four preparedness domains: diagnostics, vaccines, therapeutics, and evidence generation. For a minimum audit covering EBOV, Sudan virus, and Bundibugyo virus, each domain can be scored from 0/3 to 3/3 using predefined criteria for deployable detection, countermeasure availability, access pathways, and the capacity to initiate rigorous research during an outbreak. Species-breadth assessments should be integrated with specimen referral, genomic sequencing, cross-border surveillance, responder protection, community engagement, and contingency financing. Preparedness should, therefore, be judged not only by the availability of tools for one Ebola virus species, but by the ability of surveillance, diagnostics, countermeasures, and research systems to respond rapidly to whichever pathogenic orthoebolavirus emerges next.
SN - 2222-1751
ER -