African swine fever,
China (People's Rep. of)
Information received on 07/12/2018 from Dr Zhang Zhongqui, Director General , China Animal Disease Control Centre, Veterinary Bureau, Ministry of Agriculture, Beijing, China (People's Rep. of)
Summary
Report type Immediate notification
Date of start of the event 27/11/2018
Date of confirmation of the event 02/12/2018
Report date 07/12/2018
Date submitted to OIE 07/12/2018
Date event resolved 21/01/2019
Reason for notification First occurrence of a listed disease
Manifestation of disease Clinical disease
Causal agent African swine fever virus
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (07/12/2018)
Follow-up report No. 1 (10/12/2018)
Follow-up report No. 2 (25/02/2019)
New outbreaks (2)
Outbreak 1 Liudong Village, Weifeng Township, Huyi District, Xi an , Shaanxi
Date of start of the outbreak 27/11/2018
Outbreak status Resolved (17/01/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 1389 205 79 1310 0
Affected population After ASF occurred in Huyi District, Xi an City, in Shaanxi 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 outbreak, a total of 19,902 additional domestic pigs were killed in the affected area and disposed of in biosafety manner. No new outbreaks and positive samples have been found for the 6 consecutive weeks of surveillance and monitoring. Local animal husbandry and veterinary authorities organized laboratory tests and on-site assessments in the affected areas, of which results 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 20:00 clock of January 17th of 2019. 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, so as to prevent the recurrence of ASF.
Outbreak 2 Dongjiangpo Village, Duqu Township, Chang an District, Xi an , Shaanxi
Date of start of the outbreak 27/11/2018
Outbreak status Resolved (17/01/2019)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 3442 85 64 3378 0
Affected population After ASF occurred in Chang an District, Xi an City, in Shaanxi 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 outbreak, a total of 21,905 additional domestic pigs were killed in the affected area and disposed of in biosafety manner. No new outbreaks and positive samples have been found for the 6 consecutive weeks of surveillance and monitoring. Local animal husbandry and veterinary authorities organized laboratory tests and on-site assessments in the affected areas, of which results 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 20:00 clock of January 17th of 2019. 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, so as to prevent the recurrence of ASF.
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 4831 290 143 4688 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 6.00% 2.96% 49.31% 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
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • Disinfestation
  • 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
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine polymerase chain reaction (PCR) 02/12/2018 Positive
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine polymerase chain reaction (PCR) 05/12/2018 Positive
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine real-time PCR 02/12/2018 Positive
China Animal Health and Epidemiology Center, National Research center for exotic animal diseases (National laboratory) Swine real-time PCR 05/12/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations