Summary
Report type
Immediate notification
Date of start of the event
18/01/2020
Date of confirmation of the event
21/01/2020
Report date
04/02/2020
Date submitted to OIE
04/02/2020
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
15/11/2019
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N6
Nature of diagnosis
Laboratory (advanced)
This event pertains to
a defined zone within the country
New outbreaks (1)

Outbreak 1
Duc Yen, Duc Yen, Dam Ha, Quang Ninh
Date of start of the outbreak
18/01/2020
Outbreak status
Continuing (or date resolved not provided)
Epidemiological unit
Village
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
3000
2500
2200
300
0
Summary of outbreaks
Total outbreaks: 1
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
3000
2500
2200
300
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
83.33%
73.33%
88.00%
83.33%
*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 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 2 (Regional Laboratory)
Birds
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)
21/01/2020
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.