Vietnam - 1 new outbreak of highly pathogenic avian influenza H5N1 in birds, Tra Vinh Province (OIE, February 26, 2016)

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Highly pathogenic avian influenza, Vietnam

Information received on 26/02/2016 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hano?, Vietnam

Summary Report type Follow-up report No. 6 Date of start of the event 07/11/2015 Date of confirmation of the event 12/11/2015 Report date 26/02/2016 Date submitted to OIE 26/02/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 27/10/2015 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N1 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (17/11/2015) Follow-up report No. 1 (25/11/2015) Follow-up report No. 2 (27/11/2015) Follow-up report No. 3 (03/12/2015) Follow-up report No. 4 (10/12/2015) Follow-up report No. 5 (16/12/2015) Follow-up report No. 6 (26/02/2016)

New outbreaks (1)

Outbreak 1 Tan Binh, Tan Binh, Cang Long, TRA VINH Date of start of the outbreak 15/02/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 1100 796 796 304 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 1100 796 796 304 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 72.36% 72.36% 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

Control measures Measures applied Vaccination in response to the outbreak (s) Disinfection / Disinfestation Stamping out Surveillance within containment and/or protection zone No treatment of affected animals Measures to be applied No other measures

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

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=19808