Nextstrain
nextstrain.org
Nextstrain
@nextstrain.org
Real-time tracking of pathogen evolution
Full blog post explaining situation and background is available here:

nextstrain.org/blog/2025-11...
Nextstrain: Interruption to GISAID-based SARS-CoV-2 sequence analyses
Nextstrain blog post from 2025-11-06; author(s): Trevor Bedford, Richard Neher and the Nextstrain team
nextstrain.org
November 6, 2025 at 9:46 PM
Closing these public analyses puts the world more in the dark and concretely harms surveillance as it becomes more difficult for variant spotters to contribute to global situational awareness. 4/5
November 6, 2025 at 9:46 PM
Tools like Nextstrain, CoV-Spectrum, UShER and outbreak.info facilitate a global community of experts to keep close tabs on the ongoing evolution of SARS-CoV-2. Support for outbreak.info ended in Jan 2025 and CoV-Spectrum hasn't been updated for >3 weeks. 3/5
November 6, 2025 at 9:46 PM
We strive to credit labs collecting specimens and generating sequence data prominently. But credit for data contributions is not zero sum – surfacing of data in popular tools generates visibility and does not infringe on future publications by the data generators. 2/5
November 6, 2025 at 9:46 PM
Hi -- if you contact us at [email protected], we can try to assist.
February 24, 2025 at 6:56 PM