OIE: Highly pathogenic influenza A viruses (infection with) (non-poultry including wild birds), Iran

Information received on 05/02/2018 from Dr Alireza Rafiepoor, Head of Iran Veterinary Organization (IVO), Iran Veterinary Organization (IVO), Ministry of Jihad-e-Agriculture, Tehran, Iran

Summary

Report type

Immediate notification

Date of start of the event

31/01/2018

Date of confirmation of the event

04/02/2018

Report date

05/02/2018

Date submitted to OIE

05/02/2018

Reason for notification

New strain of a listed disease in the country

Causal agent

Highly pathogenic influenza A virus

Serotype

H5N6

Nature of diagnosis

Clinical, Laboratory (basic), Laboratory (advanced), Necropsy

This event pertains to

a defined zone within the country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Outbreak Location

  • GILAN ( Boujagh, Kiashahr, Kiashahr )

Total animals affected

Species

Susceptible

Cases

Deaths

Killed and disposed of

Slaughtered

Gadwall:Anatidae (Anas strepera)

50000

1300

1200

100

0

Outbreak statistics

Species

Apparent morbidity rate

Apparent mortality rate

Apparent case fatality rate

Proportion susceptible animals lost*

Gadwall:Anatidae (Anas strepera)

2.60%

2.40%

92.31%

2.60%


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

Epidemiology

Source of the outbreak(s) or origin of infection

  • Contact with wild species

Epidemiological comments

On January 31st unexpected mortality was reported in Bojagh, Kiashar area, in the north of Iran, where migratory birds spend their wintering season. On February 4th, the Iran veterinary national reference laboratory confirmed HPAI virus H5N6 in the samples collected from the sick and dead birds.
Iran Veterinary Organization (IVO) will continue to monitor the situation in the area closely and to advice poultry flock owners, including owners of backyard poultry, to remain vigilant to the threat of avian influenza and implement strategic, ongoing biosecurity measures – in particular feeding birds indoors or under cover, and discouraging wild birds from the poultry premises.

Control measures

Measures applied

  • Surveillance within containment and/or protection zone
  • Screening
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Control of wildlife reservoirs
  • Selective killing and disposal
  • Zoning
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals

Measures to be applied

  • Surveillance outside containment and/or protection zone

Diagnostic test results

Laboratory name and type

Gilan Veterinary Laboratory ( Local laboratory )

Tests and results

Species

Test

Test date

Result

Gadwall

real-time reverse transcriptase/polymerase chain reaction (RRT-PCR)

01/02/2018

Positive

Laboratory name and type