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 14 January 2026

Find out more about the Outbreak Response programme

Active Outbreak Response units


MERS-CoV Outbreak Response Unit

Status: active – level 1

Filovirus Outbreak Response Unit

Status: active – level 1

Past Outbreak Response units


Outbreak response unit – Rift Valley fever

Status: discontinued since January 2026 – level 1

Chikungunya Outbreak Response unit

Status: discontinued since January 2026 – level 1

West Nile Outbreak Response unit

Status: discontinued since November 2025 – level 1

Mpox Outbreak Response Unit

Status: discontinued since September 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