Highly pathogenic avian influenza,
Korea (Dem. People's Rep.)
Information received on 13/05/2013 from Mr Ri Kyong Gun, Director of the Veterinary and, Ministry of Agriculture, Anti-Epizootic Department, PYONGYANG, Korea (Dem. People's Rep.)
Summary
Report type Immediate notification
Date of start of the event 19/04/2013
Date of pre-confirmation of the event 02/05/2013
Report date 13/05/2013
Date submitted to OIE 13/05/2013
Date event resolved 09/05/2013
Reason for notification New strain of a listed disease
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (13/05/2013)
Follow-up report No. 1 (22/05/2013)
New outbreaks (1)
Outbreak 1 Tudan Duck Factory, Rakrang, P'YONGYANG-SI
Date of start of the outbreak 19/04/2013
Outbreak status Resolved (09/05/2013)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 226000 166000 44000 122000 0
Affected population Ducks in one of the 20 cages showed clinical signs on 19 April 2013 but recovered 3-4 days later. As mortality increased, samples were sent to the Central Veterinary Station on 2 May 2013. In total, one adult cage, 12 fattening cages and 7 duckling cages were infected. More than 2,000 adult ducks, 42,000 fattening ducks and 120,000 ducklings younger than 20 days were dead or killed.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 226000 166000 44000 122000 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 73.45% 19.47% 26.51% 73.45%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
  • Contact with wild species
Control measures
Measures applied
  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Screening
  • 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 Species Test Test date Result
Central Veterinary Station (National laboratory) Birds pathogen isolation by egg inoculation 02/05/2013 Positive
Veterinary Institute of the Academy of Agricultural Sciences (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 07/05/2013 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations