General information
Report type: immediate notification
Started: 29 Jan 2022
Confirmed: 5 Feb 2022
Reported: 13 Feb 2022
Reason for notification: recurrence
Last occurrence: 27 Mar 2017
Manifestation of disease: clinical disease
Causal agent: Highly pathogenic avian influenza virus
Serotype: H5N1
Nature of diagnosis: clinical, necropsy, laboratory
This event pertains to a determinate zone in the country.

Outbreak location: Kongso-Bamengoum, Bafoussam 3, Mifi, Ouest
Date of start of the outbreak: 29 Jan 2022
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Birds / 13 513 / 11 984 / 11 984 / 1529 / 0 / 0
Affected population: these are 52-week-old laying hens. The birds are
kept in buildings with an automatic water distribution system.

Epidemiology
Source of the outbreak(s) or origin of infection: unknown or
inconclusive
Epidemiological comments: the epidemiological surveillance network for
animal diseases (or RESCAM) of the Ministry of Livestock, Fisheries
and Animal Industries has reported high poultry mortality in laying
hen houses in the locality of Kongso-Bamengoum. The epidemiological
investigation teams of the veterinary services took samples for
analysis and protective measures were taken in accordance with Law no.
006, on the nomenclature and sanitary zoo regulations
of livestock diseases considered legally contagious and notifiable,
and with the OIE Terrestrial Animal Health Code.

Control measures at event level
Domestic control measures applied: zoning; traceability; surveillance
within containment and or the protection zone; surveillance outside
containment and or the protection zone; movement control inside the
country; process to inactivate the pathogenic agent in products or
by-products; quarantine; official disposal of carcasses, by-products,
and waste; official destruction of animal products; disinfestation;
screening; stamping out.
Domestic control measures to be applied: disinfection
Wild control measures applied: control of wildlife reservoirs

Diagnostic test results
Laboratory name and type / Species / Outbreaks / Test / Test date /
Result
(LANAVET) (national laboratory) /
birds / 1 / real-time multiplex polymerase chain reaction (real-time
multiplex PCR) / 5 Feb 2022 / positive
[National Veterinary Laboratory] (LANAVET) (national laboratory) /
birds / 1 / real-time polymerase chain reaction (real-time PCR) / 5
Feb 2022 / positive
Laboratoire national vétérinaire (LANAVET) (national laboratory) /
birds / 1 / lateral flow device (LFD) / 5 Feb 2022 / positive