OIE: Highly pathogenic avian influenza, Vietnam

Information received on 03/08/2018 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	28/07/2018
Date of confirmation of the event	03/08/2018
Report date	03/08/2018
Date submitted to OIE	03/08/2018
Reason for notification	Recurrence of a listed disease
Date of previous occurrence	19/02/2018
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5N6
Nature of diagnosis	Clinical, Laboratory (advanced)
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 3

Outbreak Location

Nghe An ( Dien Lien, Dien Lien, Dien Chau )
Hai Phong ( An Hung, An Hung, An Duong An Hong, An Hong, An Duong )

Total animals affected

Species	Susceptible	Cases	Deaths	Killed and disposed of	Slaughtered
Birds	12620	3090	1590	11030	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	24.48%	12.60%	51.46%	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) Surveillance outside containment and/or protection zone Stamping out Disinfection No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Regional animal health offices 2 & 3 ( Regional Laboratory )

Tests and results

Species	Test	Test date	Result
Birds	real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)	30/07/2018	Positive

Future Reporting

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