Vietnam - 1 new outbreak of highly pathogenic avian influenza H5N6 in backyard birds, Quang Nam Province (OIE, December 13, 2015)

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Highly pathogenic avian influenza, Vietnam

Information received on 13/12/2015 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. 22 Date of start of the event 18/08/2015 Date of confirmation of the event 19/08/2015 Report date 13/12/2015 Date submitted to OIE 13/12/2015 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 08/2015 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N6 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (20/08/2015) Follow-up report No. 1 (31/08/2015) Follow-up report No. 2 (11/09/2015) Follow-up report No. 3 (14/09/2015) Follow-up report No. 4 (30/09/2015) Follow-up report No. 5 (03/10/2015) Follow-up report No. 6 (13/10/2015) Follow-up report No. 7 (13/10/2015) Follow-up report No. 8 (20/10/2015) Follow-up report No. 9 (24/10/2015) Follow-up report No. 10 (27/10/2015) Follow-up report No. 11 (28/10/2015) Follow-up report No. 12 (02/11/2015) Follow-up report No. 13 (03/11/2015) Follow-up report No. 14 (13/11/2015) Follow-up report No. 15 (17/11/2015) Follow-up report No. 16 (23/11/2015) Follow-up report No. 17 (28/11/2015) Follow-up report No. 18 (30/11/2015) Follow-up report No. 19 (07/12/2015) Follow-up report No. 20 (10/12/2015) Follow-up report No. 21 (10/12/2015) Follow-up report No. 22 (13/12/2015)

New outbreaks (1)

Outbreak 1 Tam Hiep, Tam Hiep, Nui Thanh, QUANG NAM Date of start of the outbreak 04/12/2015 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Backyard Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 4000 1000 500 3500 0 Affected population Quails

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 4000 1000 500 3500 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 25.00% 12.50% 50.00% 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 Disinfection / Disinfestation Surveillance outside containment and/or protection zone Stamping out Surveillance within containment and/or protection zone No vaccination 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=19332