Nigeria - 1 new outbreak of highly pathogenic avian influenza H5N6 in birds in a live bird market, Sokoto (OIE, November 27, 2019)

[Pathfinder]

Low pathogenic avian influenza (poultry), Nigeria

Information received on 27/11/2019 from Dr Olaniran Alabi, Director, Chief Veterinary Officer, Veterinary and Pest Control Services, Federal Ministry of Agriculture and Rural Development, ABUJA, Nigeria

Summary Report type Immediate notification Date of start of the event 25/06/2019 Date of confirmation of the event 27/11/2019 Report date 27/11/2019 Date submitted to OIE 27/11/2019 Reason for notification First occurrence of a listed disease in the country Causal agent Low pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Laboratory (advanced) This event pertains to the whole country

New outbreaks (1)

Outbreak 1 Sokoto Live Bird Market, Sokoto North, Sokoto Date of start of the outbreak 25/06/2019 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Livestock market Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2449 150 0 0 0 Affected population The affected population is made of birds in a live bird market.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2449 150 0 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 6.12% 0.00% 0.00% 0.00% *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 agent was detected during active surveillance.

Control measures Measures applied Vaccination prohibited No treatment of affected animals Measures to be applied Movement control inside the country Quarantine Official disposal of carcasses, by-products and waste Disinfection

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) 27/11/2019 Positive

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

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https://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=32513

[Pathfinder]

Highly pathogenic avian influenza, Nigeria

Information received on 23/12/2019 from Dr Olaniran Alabi, Director, Chief Veterinary Officer, Veterinary and Pest Control Services, Federal Ministry of Agriculture and Rural Development, ABUJA, Nigeria

Summary Report type Immediate notification Date of start of the event 25/06/2019 Date of confirmation of the event 27/11/2019 Report date 23/12/2019 Date submitted to OIE 23/12/2019 Reason for notification New strain of a listed disease in the country Causal agent Highly pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Laboratory (advanced) This event pertains to the whole country

New outbreaks (1)

Outbreak 1 Sokoto live bird market, Sokoto North, Sokoto Date of start of the outbreak 25/06/2019 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Livestock market Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2449 150 0 0 0 Affected population The affected population is made of birds in a live bird market. The agent (strain) was detected during active surveillance.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 2449 150 0 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 6.12% 0.00% 0.00% 0.00% *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 original report submitted on 27 November 2019 for highly pathogenic avian influenza (HPAI) with OIE reference number 32493 was deleted and replaced with the report number 32513 for low pathogenic avian influenza on 29 November 2019. The latter report and correspondent follow-up report No. 32654 were subsequently deleted on the 20 December 2019 and replaced by the current immediate notification. These changes were done due to the intravenous pathogenicity index (IVPI) laboratory analysis which confirmed the H5N6 as highly pathogenic avian influenza.

Control measures Measures applied Vaccination prohibited No treatment of affected animals Measures to be applied Movement control inside the country Quarantine Official disposal of carcasses, by-products and waste Disinfection

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) 27/11/2019 Positive

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

...

https://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=32711