Highly pathogenic avian influenza,
Information received on 01/12/2018 from Dr Alireza Rafiepoor, Head of Iran Veterinary Organization (IVO), Iran Veterinary Organization (IVO), Ministry of Jihad-e-Agriculture, Tehran, Iran
Report type Immediate notification
Date of start of the event 30/09/2018
Date of confirmation of the event 04/10/2018
Report date 01/12/2018
Date submitted to OIE 01/12/2018
Date event resolved 04/10/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 30/01/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (basic), Necropsy
This event pertains to a defined zone within the country
Related reports Immediate notification (01/12/2018)
Follow-up report No. 1 (11/12/2018)
Follow-up report No. 2 (22/12/2018)
Follow-up report No. 3 (12/01/2019)
Follow-up report No. 4 (02/02/2019)
Follow-up report No. 5 (12/02/2019)
Follow-up report No. 6 (20/02/2019)
Follow-up report No. 7 (16/03/2019)
New outbreaks (1)
Outbreak 1 Valiran, Damavand, Damavand, Tehran
Date of start of the outbreak 30/09/2018
Outbreak status Resolved (04/10/2018)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 138 10 5 133 0
Affected population Backyard poultry. 138 multi-species birds (geese, ducks, free-range village chickens) kept in a holding for non-commercial use.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 138 10 5 133 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 7.25% 3.62% 50.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments 1- The event was reported under Iran Veterinary Organisation HPAI passive surveillance. 2- Outbreak investigation is still ongoing; in the protection zone and the surveillance zone, trace-back and trace-forward activities are ongoing.
Control measures
Measures applied
  • Screening
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
Diagnostic test results
Laboratory name and type Species Test Test date Result
Provincial Veterinary Laboratory of Isfahan (Local laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 04/10/2018 Positive
Central Veterinary Reference laboratory of Iran Veterinary Organization (IVO) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 06/10/2018 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations