Outbreak Response units

In the event of an epidemic outbreak due to the emergence or re-emergence of a pathogen, in France or anywhere else in the world, the agency triggers a dedicated levelled procedure in order to respond proportionately to health crises.

Last updated on 19 February 2026

Find out more about the Outbreak Response programme

Active Outbreak Response units


Filovirus Outbreak Response Unit

Status: active – level 1

Chikungunya Outbreak Response unit

Status: active – level 1

Mpox Outbreak Response Unit

Status: active – level 1

Past Outbreak Response units


MERS-CoV Outbreak Response Unit

Status: discontinued since February 2026 – level 1

Outbreak response unit – Rift Valley fever

Status: discontinued since January 2026 – level 1

West Nile Outbreak Response unit

Status: discontinued since November 2025 – level 1

Oropouche virus Outbreak Response Unit

Status: discontinued since January 2025 – level 1

Marburg virus disease Outbreak Response Unit

Status: suspended since 9 June 2023 – level 1

Multi-country mpox Outbreak Response Unit (2022)

Status: discontinued since May 2023 – level 2

Ebola (Sudan Strain) Outbreak Response Unit

Status: suspended since January 2023 – level 1

Poliomyelitis Outbreak response Unit

Status: suspended (November 2022) – level 1

Acute hepatitis of unknown origin Outbreak Response Unit

Status: suspended (August 2022) – level 1

Covid-19 Outbreak Response Unit

Status: suspended (July 2022) – level 3