OIE: Highly pathogenic avian influenza, Iran

Information received on 13/10/2011 from Dr Seyed Mohsen Dastoor, Head of Iran Veterinary Organization, Iran Veterinary Organization , Ministry of Jihad-e-Agriculture, Tehran, Iran

Summary

Report type Immediate notification
Start date 13/09/2011
Date of first confirmation of the event 15/09/2011
Report date 13/10/2011
Date submitted to OIE 13/10/2011
Reason for notification Reoccurrence of a listed disease
Date of previous occurrence 03/08/2008
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N1
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: 2
Location(s)
  • MAZANDARAN (KHAJ KOLA, ZIRAB, SAVADKOOH; BALAZARRIN KOLA, JOOYBAR)
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Birds 2682 535 345 2337 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 19.95% 12.86% 64.49% 100.00%

* Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology

Source of the outbreak(s) or origin of infection
  • Under investigation
Epidemiological comments The event was reported according to the Iranian passive surveillance in place; a post-outbreak investigation to trace the source of infection is ongoing to detect the probable spread and circulation of H5 serotype. Active surveillance is ongoing.

Control measures

Measures applied
  • Control of wildlife reservoirs
  • Stamping out
  • Quarantine
  • Movement control inside the country
  • Screening
  • Zoning
  • Disinfection of infected premises/establishment(s)
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures

Diagnostic test results

Laboratory name and type Central Veterinary Laboratory of Iran Veterinary Organization (National laboratory)
Tests and results
Species Test Test date Result
Birds reverse transcription - polymerase chain reaction (RT-PCR) 15/09/2011 Positive
Laboratory name and type Reference Laboratory for Avian Influenza, Padova (Italy) (OIE抯 Reference Laboratory)
Tests and results
Species Test Test date Result
Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 10/10/2011 Positive

Future Reporting

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