Vietnam - 2 new outbreaks of highly pathogenic avian influenza H5N1 in backyard birds in Bac Ninh and Tay Ninh (OIE, March 9, 2017)

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Highly pathogenic avian influenza, Vietnam

Information received on 09/03/2017 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoď, Vietnam

Summary Report type Follow-up report No. 3 Date of start of the event 14/02/2017 Date of confirmation of the event 15/02/2017 Report date 09/03/2017 Date submitted to OIE 09/03/2017 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 10/2016 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N1 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to the whole country Related reports Immediate notification (19/02/2017) Follow-up report No. 1 (21/02/2017) Follow-up report No. 2 (23/02/2017) Follow-up report No. 3 (09/03/2017)

New outbreaks (2)

Outbreak 1 Huu Chap, Hoa Long, Bac Ninh city, BAC NINH Date of start of the outbreak 03/03/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Backyard Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 6100 3000 2000 4100 0

Outbreak 2 An Thanh, An Thanh, Ben Cau, TAY NINH Date of start of the outbreak 03/03/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Backyard Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Birds 500 50 50 450 0

Summary of outbreaks Total outbreaks: 2 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Birds 6600 3050 2050 4550 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 46.21% 31.06% 67.21% 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://oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=23169

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Last update 15:09 | 11/03/2017 0

A/H5N1 avian flu spotted in Bac Ninh
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The information was revealed by Nguyen Nhan Lung, Head of the provincial Department of Animal Health on March 10...

The People?s Committee of Bac Ninh city has announced an A/H5N1 avian flu outbreak in Huu Chap hamlet, Hoa Long commune since March 6, 2017. The area with possibility of disease spread includes the communes of Viem Xa, Dau Han and Xuan Ai while the buffer zone consists of Van An, Kinh Bac and Vu Ninh communes.

The city has directed authorised agencies to check up entire fowls in Hoa Long commune and vaccinate ones that have yet to be vaccinated. The agencies have been asked to disinfect households and communes where the disease was found while intensifying monitoring animals? health at livestock farms for timely reaction.

Previously, on March 6, as many as 6,100 sick and dead fowls were spotted at farms of locals in Huy Chap hamlet, Hoa Long commune. The samples were tested to be positive to the A/H5N1 avian flu virus. The virus-infected fowls were culled on March 7.

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http://english.vietnamnet.vn/fms/society/174256/a-h5n1-avian-flu-spotted-in-bac-ninh.html