OIE: Highly pathogenic avian influenza, India

Information received on 15/01/2009 from Mr Natarajan Gokulram, Secretary to the Government of India, Department of Animal Husbandry, Dairying and Fisheries, Ministry of Agriculture, New Delhi, India

Summary

Report type Follow-up report No. 5
Start date 21/11/2008
Date of first confirmation of the event 27/11/2008
Report date 13/01/2009
Date submitted to OIE 15/01/2009
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 11/2008
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
Nature of diagnosis Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports

New outbreaks

Outbreak 1 Matigara, Binay Krishnapally, Darjeeling, WEST BENGAL
Date of start of the outbreak 01/01/2009
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 30985 217 87 30898
Affected population rural backyard poultry
Outbreak 2 Rangli Rangliot, Bansdhura, Darjeeling, WEST BENGAL
Date of start of the outbreak 02/01/2009
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Village
Affected animals
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 9757 210 130 9627
Affected population rural backyard poultry
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 40742 427 217 40525
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 1.05% 0.53% 50.82% **

* Removed from the susceptible population through death, destruction and/or slaughter
** Not calculated because of missing information

Epidemiology

Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Epidemiological investigation is ongoing. Stamping out of all domestic poultry is being applied in an approximately 3-km-radius zone around the outbreaks followed by compensation of the owners.
An intensive surveillance campaign has been launched in a 10-km-radius zone including:
- closure of poultry markets and prohibition on sale and transportation of poultry products in the infected zone;
- disinfection of premises after culling and sealing of premises where appropriate.
Restocking will be permitted in accordance with protocol followed in this regard.

Control measures

Measures applied
  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Screening
  • No vaccination
  • No treatment of affected animals
Measures to be applied
  • Disinfection of infected premises/establishment(s)
  • Dipping / Spraying

Diagnostic test results

Laboratory name and type High Security Animal Disease Laboratory, Bhopal (National laboratory)
Tests and results
Species Test Test date Result
Birds real-time PCR 02/01/2009 Positive
Birds real-time PCR 06/01/2009 Positive
Birds reverse transcription - polymerase chain reaction (RT-PCR) 02/01/2009 Positive
Birds reverse transcription - polymerase chain reaction (RT-PCR) 06/01/2009 Positive
Laboratory name and type National Institute of Virology, Pune (National laboratory)
Tests and results
Species Test Test date Result
Birds real-time PCR 03/01/2009 Positive
Birds reverse transcription - polymerase chain reaction (RT-PCR) 03/01/2009 Positive

Future Reporting

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

Map of outbreak locations

Location of current outbreaks