Vietnam - 1 new outbreak of highly pathogenic avian influenza H5N6 in birds in village, Thai Thuy, Thai Binh (OIE, July 03, 2019)

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Highly pathogenic avian influenza, Vietnam

Information received on 03/07/2019 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 Immediate notification Date of start of the event 23/06/2019 Date of confirmation of the event 25/06/2019 Report date 03/07/2019 Date submitted to OIE 03/07/2019 Reason for notification Recurrence of a listed disease Date of previous occurrence 11/03/2019 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

New outbreaks (1)

Outbreak 1 Thuy Hong, Thuy Hong, Thai Thuy, Thai Binh Date of start of the outbreak 23/06/2019 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Village Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1000 1000 35 965 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 1000 1000 35 965 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 100.00% 3.50% 3.50% 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 Surveillance outside containment and/or protection zone Stamping out Disinfection Vaccination permitted (if a vaccine exists) No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result Regional Animal Health Office (RAHO2) (Regional Laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 25/06/2019 Positive

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=30969