Vietnam - 2 new outbreaks of highly pathogenic avian influenza H5N6 in birds in villages, Quang Ngai (OIE, July 08, 2020)

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[TD="align: left"]Highly pathogenic avian influenza,
Vietnam[/TD]
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[TD]Information received on 08/07/2020 from Dr Dong Pham Van, Director General, Chief Veterinary Officer, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoď, Vietnam[/TD]
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[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]25/06/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]27/06/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]08/07/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]08/07/2020[/TD]

[TD="width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Recurrence of a listed disease[/TD]

[TD="width: 10%"]Date of previous occurrence[/TD]
[TD="width: 30%"]06/06/2020[/TD]

[TD="width: 10%"]Manifestation of disease[/TD]
[TD="width: 30%"]Clinical disease[/TD]

[TD="width: 10%"]Causal agent[/TD]
[TD="width: 30%"]Highly pathogenic avian influenza virus[/TD]

[TD="width: 10%"]Serotype[/TD]
[TD="width: 30%"]H5N6[/TD]

[TD="width: 10%"]Nature of diagnosis[/TD]
[TD="width: 30%"]Clinical, Laboratory (advanced)[/TD]

[TD="width: 10%"]This event pertains to[/TD]
[TD="width: 30%"]a defined zone within the country[/TD]

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[TD]New outbreaks (2)[/TD]
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Tinh Chau, Tinh Chau, Quang Ngai, Quang Ngai
Date of start of the outbreak	25/06/2020
Outbreak status	Continuing (or date resolved not provided)
Epidemiological unit	Village
Affected animals	Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 4500 3500 2987 1513 0

[TD="align: left"]Outbreak 1[/TD]

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Binh Phuoc, Binh Phuoc, Binh Son, Quang Ngai
Date of start of the outbreak	29/06/2020
Outbreak status	Continuing (or date resolved not provided)
Epidemiological unit	Village
Affected animals	Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 3600 2000 1000 2600 0

[TD="align: left"]Outbreak 2[/TD]

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Total outbreaks: 2
Total animals affected	Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 8100 5500 3987 4113 0
Outbreak statistics	Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 67.90% 49.22% 72.49% 100.00%

[TD="align: left"]Summary of outbreaks[/TD]

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]

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[TD]Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

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[TD]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

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[TD]Diagnostic test results

Laboratory name and type	Species	Test	Test date	Result
Regional Animal Health Office No.4 (RAHO4) (Regional Laboratory)	Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	27/06/2020	Positive

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[TD]Future Reporting

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

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https://www.oie.int/wahis_2/public/w...reportid=34982