Nextstrain Ebolavirus resources
Near daily updates of our phylogeographic analysis of the third BDBV outbreak which started in early 2026. The majority of sequences are from Eastern DRC, with some from Uganda. This analysis is in partnership with Institut National de Recherche Biomédicale (INRB), DRC.
Interactive narratives
We have written sit-rep style reports to provide high-level overviews of the outbreak:
Evolutionary history of all sequenced Zaire ebolavirus (EBOV) outbreaks, the most recent of which was the 2025 Bulape (DRC) outbreak.
We also maintain a summary tree of the 3 sequenced Bundibugyo virus (BDBV) outbreaks.
An updated version of the analysis in Kinganda-Lusamaki E et al., "Integration of genomic sequencing into the response to the Ebola virus outbreak in Nord Kivu, Democratic Republic of the Congo", Nature Medicine (2021) (PDF)
Genomic epidemiology of the 2013-2016 West African Ebola epidemic
Support
All source code is freely available under the terms of the GNU Affero General Public License. Screenshots may be used under a CC-BY-4.0 license and attribution to nextstrain.org must be provided.
This work is made possible by the open sharing of genetic data by research groups from all over the world. We gratefully acknowledge their contributions. Special thanks to Kristian Andersen, Josh Batson, David Blazes, Jesse Bloom, Peter Bogner, Anderson Brito, Matt Cotten, Ana Crisan, Tulio de Oliveira, Gytis Dudas, Vivien Dugan, Karl Erlandson, Nuno Faria, Jennifer Gardy, Nate Grubaugh, Becky Kondor, Dylan George, Ian Goodfellow, Betz Halloran, Christian Happi, Jeff Joy, Paul Kellam, Philippe Lemey, Nick Loman, Duncan MacCannell, Erick Matsen, Sebastian Maurer-Stroh, Placide Mbala, Danny Park, Oliver Pybus, Andrew Rambaut, Colin Russell, Pardis Sabeti, Katherine Siddle, Kristof Theys, Dave Wentworth, Shirlee Wohl and Cecile Viboud for comments, suggestions and data sharing.
