African swine fever,
Laos
Information received on 27/08/2019 from Dr Vilayphone Vorraphim, Director General, Department of Livestock and Fisheries, Ministry of Agriculture and Forestry, Vientiane, Laos
Summary
Report type Follow-up report No. 3
Date of start of the event 02/06/2019
Date of confirmation of the event 17/06/2019
Report date 27/08/2019
Date submitted to OIE 27/08/2019
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 (20/06/2019)
Follow-up report No. 1 (17/07/2019)
Follow-up report No. 2 (16/08/2019)
Follow-up report No. 3 (27/08/2019)
Follow-up report No. 4 (08/10/2019)
New outbreaks (17)
Outbreak 1 (ASF-2019-31) Darkdern, Darkcheung, Sekong
Date of start of the outbreak 28/06/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 190 102 102 88 0
Outbreak 2 (ASF-2019-29) Nasano, Thapangthong, Savannakhet
Date of start of the outbreak 05/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 253 122 122 131 0
Outbreak 3 (ASF-2019-30) Kaengkaeb, Thapangthong, Savannakhet
Date of start of the outbreak 07/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 192 72 72 120 0
Outbreak 4 (ASF-2019-32) Darkcheung, Darkcheung, Sekong
Date of start of the outbreak 11/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 462 281 281 181 0
Outbreak 5 (ASF-2019-37) Nakiaw, Mahaxay, Khammuane
Date of start of the outbreak 12/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 165 158 158 6 0
Outbreak 6 (ASF-2019-33) Tiew, Lamarm, Sekong
Date of start of the outbreak 13/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 435 190 190 245 0
Outbreak 7 (ASF-2019-34) Baeng, Lamarm, Sekong
Date of start of the outbreak 15/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 338 203 203 135 0
Outbreak 8 (ASF-2019-35) Nongbong+Houaykiaw, Lamarm, Sekong
Date of start of the outbreak 17/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 386 308 308 78 0
Outbreak 9 (ASF-2019-36) Nonnongwa, Lamarm, Sekong
Date of start of the outbreak 28/07/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 966 840 840 126 0
Outbreak 10 (ASF-2019-45) Thalam, Xaysettha, Attapeu
Date of start of the outbreak 01/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 465 129 129 336 0
Outbreak 11 (ASF-2019-38) Kamesung, Samakkhixay, Attapeu
Date of start of the outbreak 02/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 205 20 20 185 0
Outbreak 12 (ASF-2019-43) Donekhong, Sanamxay, Attapeu
Date of start of the outbreak 09/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 230 99 99 131 0
Outbreak 13 (ASF-2019-39) Layaotay, Samakkhixay, Attapeu
Date of start of the outbreak 09/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 420 70 70 350 0
Outbreak 14 (ASF-2019-40) Layaokung, Samakkhixay, Attapeu
Date of start of the outbreak 09/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 431 47 47 384 0
Outbreak 15 (ASF-2019-42) Chompoy, Sanamxay, Attapeu
Date of start of the outbreak 11/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 522 386 386 136 0
Outbreak 16 (ASF-2019-44) Donesoue, Sanamxay, Attapeu
Date of start of the outbreak 11/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 764 165 165 599 0
Outbreak 17 (ASF-2019-41) Vangkheng, Phouvong, Attapeu
Date of start of the outbreak 13/08/2019
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 354 10 10 344 0
Summary of outbreaks Total outbreaks: 17
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 6778 3202 3202 3575 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 47.24% 47.24% 100.00% 99.99%
*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 (NAHL) (National laboratory) Swine real-time PCR 18/07/2019 Positive
National Animal Health Laboratory (NAHL) (National laboratory) Swine real-time PCR 19/07/2019 Positive
National Animal Health Laboratory (NAHL) (National laboratory) Swine real-time PCR 08/08/2019 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations