Highly pathogenic avian influenza,
China (People's Rep. of)
Information received on 18/02/2017 from Dr Yu Kangzhen, National Chief Veterinary Officer , Veterinary Bureau , Ministry of Agriculture , Beijing, China (People's Rep. of)
Report type Immediate notification
Date of start of the event 10/01/2017
Date of confirmation of the event 10/01/2017
Report date 18/02/2017
Date submitted to OIE 18/02/2017
Date event resolved 08/05/2017
Reason for notification Recurrence of a listed disease
Date of previous occurrence 2015
Manifestation of disease Sub-clinical infection
Causal agent Highly pathogenic avian influenza virus
Serotype H7N9
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (18/02/2017)
Follow-up report No. 1 (01/03/2017)
Follow-up report No. 2 (09/05/2017)
Follow-up report No. 3 (10/01/2018)
New outbreaks (1)
Outbreak 1 Meizhou city, Guangdong
Date of start of the outbreak 10/01/2017
Outbreak status Resolved (08/05/2017)
Epidemiological unit Livestock market
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Affected population Two chicken swab samples in a live bird market
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds **
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds ** ** ** **
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Samples from live bird markets sent to the National Reference Laboratory for Avian Influenza by the Guangdong veterinary authotities tested positive for a highly pathogenic avian influenza H7N9 virus. Affected live poultry markets have been closed and surveillance is strengthened in the whole province.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection
  • Quarantine
  • 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 Reference Laboratory for Avian Influenza (National laboratory) Birds virus sequencing 10/01/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations