Highly pathogenic avian influenza,
Laos
Information received on 10/08/2017 from Dr Somphanh Chanphengxay, Director General, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Laos
Summary
Report type Immediate notification
Date of start of the event 02/07/2017
Date of confirmation of the event 12/07/2017
Report date 10/08/2017
Date submitted to OIE 10/08/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 26/10/2016
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
New outbreaks (5)
Outbreak 1 Phiengta, Thathome, XAYSOMBOUN SPECIAL REGION
Date of start of the outbreak 02/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2635 2216 2216 419 0
Affected population Ducks and hens
Outbreak 2 Pu, Thathome, XAYSOMBOUN SPECIAL REGION
Date of start of the outbreak 02/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 3452 395 395 3057 0
Affected population Ducks and hens
Outbreak 3 Hadsamkhone, Thathome, XAYSOMBOUN SPECIAL REGION
Date of start of the outbreak 02/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2787 1774 1774 1013 0
Affected population Ducks and hens
Outbreak 4 Donglankham, Sanasomboun, CHAMPASAK
Date of start of the outbreak 20/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 8800 8750 8750 50 0
Affected population Hens
Outbreak 5 Nasong, Thathome, XAYSOMBOUN SPECIAL REGION
Date of start of the outbreak 25/07/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1662 1360 1360 302 0
Affected population Ducks and hens
Summary of outbreaks Total outbreaks: 5
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 19336 14495 14495 4841 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 74.96% 74.96% 100.00% 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
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Stamping out
  • Disinfection
  • 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
National Animal Health Laboratory (National laboratory) Birds real-time PCR 12/07/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations