Nigeria - 1 new outbreak of highly pathogenic avian influenza H5N8 in birds in farm, Nasarawa (OIE, February 2, 2018)

[Pathfinder]

Highly pathogenic avian influenza, Nigeria

Information received on 02/02/2018 from Dr Gideon Mbursa Mshelbwala, Director, Veterinary Services, Federal Ministry of Agriculture and Rural Development, ABUJA, Nigeria

Summary Report type Follow-up report No. 23 Date of start of the event 19/11/2016 Date of confirmation of the event 16/12/2016 Report date 02/02/2018 Date submitted to OIE 02/02/2018 Reason for notification New strain of a listed disease in the country Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (17/12/2016) Follow-up report No. 1 (26/12/2016) Follow-up report No. 2 (08/02/2017) Follow-up report No. 3 (13/02/2017) Follow-up report No. 4 (20/02/2017) Follow-up report No. 5 (06/03/2017) Follow-up report No. 6 (13/03/2017) Follow-up report No. 7 (20/03/2017) Follow-up report No. 8 (04/04/2017) Follow-up report No. 9 (10/04/2017) Follow-up report No. 10 (24/04/2017) Follow-up report No. 11 (08/05/2017) Follow-up report No. 12 (02/06/2017) Follow-up report No. 13 (28/06/2017) Follow-up report No. 14 (18/07/2017) Follow-up report No. 15 (31/07/2017) Follow-up report No. 16 (08/09/2017) Follow-up report No. 17 (19/09/2017) Follow-up report No. 18 (03/10/2017) Follow-up report No. 19 (30/10/2017) Follow-up report No. 20 (13/11/2017) Follow-up report No. 21 (27/11/2017) Follow-up report No. 22 (09/01/2018) Follow-up report No. 23 (02/02/2018)

New outbreaks (1)

Outbreak 1 Karu, Karu, NASARAWA Date of start of the outbreak 25/01/2018 Outbreak status Resolved (02/02/2018) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1150 1105 1105 45 0 Affected population 5 weeks old broilers and cockerels

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1150 1105 1105 45 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 96.09% 96.09% 100.00% 100.00% *Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive Epidemiological comments The outbreak started when unsold birds taken to the market where returned to the farm.

Control measures Measures applied Traceability Quarantine Official disposal of carcasses, by-products and waste Vaccination prohibited No treatment of affected animals Measures to be applied Official destruction of animal products

Diagnostic test results Laboratory name and type Species Test Test date Result National Veterinary Research Institute, Vom (Regional Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 01/02/2018 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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