African swine fever,
Information received on 11/07/2019 from Dr Vilayphone Vorraphim, Director General, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Laos
Report type Immediate notification
Date of start of the event 23/06/2019
Date of confirmation of the event 03/07/2019
Report date 11/07/2019
Date submitted to OIE 11/07/2019
Date event resolved 29/11/2019
Reason for notification First occurrence of a listed disease
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (11/07/2019)
Follow-up report No. 1 (16/08/2019)
Follow-up report No. 2 (28/08/2019)
Follow-up report No. 3 (08/10/2019)
Follow-up report No. 4 (10/08/2020)
New outbreaks (1)
Outbreak 1 (ASF-2019-18) Nasiew, Nasaithong, Vientiane Capital
Date of start of the outbreak 23/06/2019
Outbreak status Resolved (03/11/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 110 96 96 14 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 110 96 96 14 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 87.27% 87.27% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Control measures
Measures applied
  • Disinfection
  • Stamping out
  • Surveillance within containment and/or protection zone
  • Surveillance outside containment and/or protection zone
  • Movement control inside the country
  • 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) Swine real-time PCR 03/07/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations