OIE: Highly pathogenic avian influenza, Vietnam

Information received on 12/03/2019 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	Immediate notification
Date of start of the event	11/02/2019
Date of confirmation of the event	27/02/2019
Report date	12/03/2019
Date submitted to OIE	12/03/2019
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	10/01/2019
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

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

Quang Nam ( Tien Tho, Tien Tho, Tien Phuoc )

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	3800	1350		3800	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	35.53%	**	**	**

* 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	Stamping out 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

Regional Animal Health Office 4 ( National laboratory )

Tests and results

Species	Test	Test date	Result
Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	27/02/2019	Positive

Future Reporting

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