OIE: Highly pathogenic avian influenza ,Vietnam

Information received on 12/12/2014 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	29/11/2014
Date of pre-confirmation of the event	01/12/2014
Report date	12/12/2014
Date submitted to OIE	12/12/2014
Reason for notification	Reoccurrence of a listed disease
Date of previous occurrence	10/2014
Manifestation of disease	Clinical disease
Causal agent	Highly pathogenic avian influenza virus
Serotype	H5
Nature of diagnosis	Clinical, Laboratory (advanced)
This event pertains to	a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 3

Outbreak Location

TRA VINH ( Thanh Hoa Son, Thanh Hoa Son, Cau Ngang Phong Phu, Phong Phu, Cau Ke )
VINH LONG ( Hoa Binh, Hoa Binh, Tra On )

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Birds	1207	987	760	447	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Birds	81.77%	62.97%	77.00%	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	Stamping out Disinfection of infected premises/establishment(s) No vaccination No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

Regional Animal Health Office (RAHO7) ( National laboratory )

Tests and results

Species	Test	Test date	Result
Birds	reverse transcription - polymerase chain reaction (RT-PCR)	01/12/2014	Positive

Future Reporting

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