Saudi Arabia - 3 new outbreaks of highly pathogenic avian influenza H5N8 in birds in farms, Riyadh (OIE, June 05, 2018)

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Highly pathogenic avian influenza, Saudi Arabia

Information received on 05/06/2018 from Dr Ali Al Doweriej, Director General of Veterinary Health and Monitoring Department, Veterinary Health and Monitoring Department, Ministry of Environment, Water and Agriculture, RIYADH, Saudi Arabia

Summary Report type Follow-up report No. 6 Date of start of the event 19/12/2017 Date of confirmation of the event 20/12/2017 Report date 05/06/2018 Date submitted to OIE 05/06/2018 Reason for notification Recurrence of a listed disease Date of previous occurrence 29/01/2008 Manifestation of disease Clinical disease 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 (22/12/2017) Follow-up report No. 1 (02/01/2018) Follow-up report No. 2 (16/01/2018) Follow-up report No. 3 (13/02/2018) Follow-up report No. 4 (01/03/2018) Follow-up report No. 5 (29/04/2018) Follow-up report No. 6 (05/06/2018)

New outbreaks (3)

Outbreak 1 AlKharj, ALkharj, Ar Riyad Date of start of the outbreak 09/04/2018 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 99850 200 200 99650 0

Outbreak 2 Aldalem, Aldalem, Ar Riyad Date of start of the outbreak 11/04/2018 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 182390 90000 1200 181190 0

Outbreak 3 ALkharj, ALkharj, Ar Riyad Date of start of the outbreak 14/04/2018 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 300000 700 700 299300 0

Summary of outbreaks Total outbreaks: 3 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 582240 90900 2100 580140 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 15.61% 0.36% 2.31% 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

Control measures Measures applied Movement control inside the country Surveillance outside containment and/or protection zone Surveillance within containment and/or protection zone Traceability Quarantine Official disposal of carcasses, by-products and waste Stamping out Disinfection Vaccination prohibited No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result Riyadh Veterinary Diagnostic Laboratory (National laboratory) Birds real-time PCR 17/04/2018 Positive

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

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