OIE: Highly pathogenic avian influenza, China (People´s Rep. of)

Information received on 17/04/2018 from Dr Zhang Zhongqiu, 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

03/04/2018

Date of confirmation of the event

16/04/2018

Report date

17/04/2018

Date submitted to OIE

19/04/2018

Reason for notification

New strain of a listed disease

Manifestation of disease

Clinical disease

Causal agent

Highly pathogenic avian influenza virus

Serotype

H7N9

Nature of diagnosis

Clinical, Laboratory (basic), Laboratory (advanced)

This event pertains to

a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

  • Ningxia ( Wuzhong, Tongxin )

Total animals affected

Species

Susceptible

Cases

Deaths

Killed and disposed of

Slaughtered

Birds

13578

1200

585

12993

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Birds

8.84%

4.31%

48.75%

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
  • Quarantine
  • Official destruction of animal products
  • Official disposal of carcasses, by-products and waste
  • 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

Harbin National Avian influenza Reference Laboratory ( OIE Reference Laboratory )

Tests and results

Species

Test

Test date

Result

Birds

reverse transcription - polymerase chain reaction (RT-PCR)

16/04/2018

Positive

Birds

virus isolation

16/04/2018

Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.