African swine fever,
China (People's Rep. of)
Information received on 03/08/2018 from Dr Yu Kangzhen, National Chief Veterinary Officer , Veterinary Bureau , Ministry of Agriculture , Beijing, China (People's Rep. of)
Summary
Report type Immediate notification
Date of start of the event 01/08/2018
Date of confirmation of the event 03/08/2018
Report date 03/08/2018
Date submitted to OIE 03/08/2018
Date event resolved 04/12/2018
Reason for notification First occurrence of a listed disease in the country
Causal agent African swine fever virus
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (03/08/2018)
Follow-up report No. 1 (04/08/2018)
Follow-up report No. 2 (10/08/2018)
Follow-up report No. 3 (16/08/2018)
Follow-up report No. 4 (07/09/2018)
Follow-up report No. 5 (30/09/2018)
Follow-up report No. 6 (09/10/2018)
Follow-up report No. 7 (12/10/2018)
Follow-up report No. 8 (12/10/2018)
Follow-up report No. 9 (16/10/2018)
Follow-up report No. 10 (17/10/2018)
Follow-up report No. 11 (08/01/2019)
New outbreaks (1)
Outbreak 1 Shenbei Street, Shenbei New District, Shenyang, Liaoning
Date of start of the outbreak 01/08/2018
Outbreak status Resolved (01/10/2018)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 19420 47 47 19373 0
Affected population After ASF occurred in Shenbei New District of Shenyang City in Liaoning Province, control measures such as blockade, killing and disposal and disinfection were applied, in accordance with the requirements of “the Contingency Plan for ASF” and “Technical Regulation on ASF Control (Trial)”. After affected pigs were killed in the affected areas, no new outbreaks and positive samples have been found for the 6 consecutive weeks in surveillance and monitoring. Local animal husbandry and veterinary authorities organized the acceptance for laboratory tests and on-site assessments in the affected areas. The results of the acceptance were in compliance with the regulations on the blockade lift in the affected areas, and the ASF outbreak was solved. The local government decided to lift the blockade at 00:00 o’clock of the 29th of September 2018. The Ministry of Agriculture and Rural Affairs requires the local animal husbandry and veterinary sectors to continue to strengthen the surveillance and monitoring and take active prevention and control measures, as to prevent the recurrence of ASF.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 19420 47 47 19373 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 0.24% 0.24% 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
Epidemiological comments This is the first outbreak of African swine fever in China. The local government launched the African Swine Fever Contingency Plan and Emergency Response Level II, according to the Standards & Protocols for African swine fever. A series of control measures have been taken.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Screening
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Control of wildlife reservoirs
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine gene sequencing 03/08/2018 Positive
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine real-time PCR 03/08/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations