Summary
Report type: immediate notification
Started on: 17 Mar 2021
Confirmed on: 26 Mar 2021
Reason for notification: new strain in the country
Reported on: 27 Mar 2021
Manifestation of disease: clinical disease
Causal agent: highly pathogenic avian influenza virus
Serotype: H5N1
Nature of diagnosis: necropsy, laboratory
This event pertains to a defined zone within the country.

New outbreaks (1)
Summary of outbreaks
Total outbreaks: 1
Outbreak location: Dragey, Avranches, Manche, Normandie
Started on: 17 Mar 2021
Epidemiological unit: not applicable
Affected animals:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered-killed for commercial use / Vaccinated
Brent goose (_Branta bernicla_): Anatidae-Anseriformes / - / 1 / 1 / 0
/ 0 / -
Affected population: a brent goose found dead in the public maritime
domain, by the wildlife mortality monitoring network (SAGIR). 1st
appearance of the H5N1 highly pathogenic strain on French territory

Epidemiology
Source of the outbreak(s) or origin of infection: contact with wild
species
Epidemiological comments: several viral strains of clade 2.3.4.4.b are
circulating locally (H5N3 and H5N1) the municipality and the
department are in a wildlife migration corridor, coming from the north
of Europe to join the south along the Atlantic Ocean.
Diagnostic test results
Laboratory name and type: Anses -- Laboratoire de
Ploufragan-Plouzane-Niort -- site de Ploufragan National Laboratory
Species / Test / Test date / Result
Brent Goose / gene sequencing / 26 Mar 2021 / positive