Highly pathogenic avian influenza,
Iran
Information received on 21/11/2016 from Dr Mehdi Khalaj, Head of IVO, Iran Veterinary Organization (IVO), Iran Veterinary Organization, Ministry of Jihad-e-Agriculture, Tehran, Iran
Summary
Report type Immediate notification
Date of start of the event 14/11/2016
Date of confirmation of the event 19/11/2016
Report date 21/11/2016
Date submitted to OIE 21/11/2016
Date event resolved 30/01/2017
Reason for notification New strain of a listed disease in the country
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
This event pertains to the whole country
Related reports Immediate notification (21/11/2016)
Follow-up report No. 1 (26/11/2016)
Follow-up report No. 2 (03/12/2016)
Follow-up report No. 3 (18/12/2016)
Follow-up report No. 4 (07/01/2017)
Follow-up report No. 5 (13/02/2017)
Follow-up report No. 6 (01/05/2017)
New outbreaks (2)
Outbreak 1 Tohid Farm, Amirabad Tavanbakhshi, Malard, Tehran
Date of start of the outbreak 14/11/2016
Outbreak status Resolved (19/11/2016)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 50621 13355 4455 46166 0
Affected population Commercial layers
Outbreak 2 Fatem2 Farm, Akhtarabad, Malard, Tehran
Date of start of the outbreak 14/11/2016
Outbreak status Resolved (19/11/2016)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 232840 47510 1128 231712 0
Affected population Commercial layers
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 283461 60865 5583 277878 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 21.47% 1.97% 9.17% 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
Epidemiological comments 1- The event was reported according to the Iran Passive surveillance in place 2- A post outbreak investigation to trace the source of infection is ongoing to detect the probable spread and circulation of this subtype. 3- Active surveillance is ongoing.
Control measures
Measures applied
  • Screening
  • Disinfection / Disinfestation
  • Quarantine
  • Stamping out
  • Official disposal of carcasses, by-products and waste
  • Surveillance within containment and/or protection zone
  • Control of wildlife reservoirs
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside containment and/or protection zone
Diagnostic test results
Laboratory name and type Species Test Test date Result
Laboratory of Tehran Province (Local laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 18/11/2016 Positive
Central Veterinary Laboratory (National laboratory) Birds gene sequencing 21/11/2016 Positive
Central Veterinary Laboratory (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 19/11/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations