Highly pathogenic avian influenza,
Russia
Information received on 11/06/2015 from Dr Evgeny Nepoklonov, Vice-minister, Ministry of Agriculture, Ministry of Agriculture, Moscow, Russia
Summary
Report type Immediate notification
Date of start of the event 10/05/2015
Date of confirmation of the event 09/06/2015
Report date 10/06/2015
Date submitted to OIE 11/06/2015
Date event resolved 06/08/2015
Reason for notification Recurrence of a listed disease
Date of previous occurrence 27/04/2015
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 Immediate notification (10/06/2015)
Follow-up report No. 1 (24/07/2015)
Follow-up report No. 2 (10/08/2015)
Follow-up report No. 3 (21/08/2015)
Follow-up report No. 4 (24/12/2015)
New outbreaks (1)
Outbreak 1 Ubsu-Nur, Ovyursky, RESPUBLIKA TYVA
Date of start of the outbreak 28/05/2015
Outbreak status Resolved (10/06/2015)
Epidemiological unit Not applicable
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great Crested Grebe:Podiceps cristatus(Podicipedidae) 2 2 0 0
Common Tern:Sterna hirundo(Laridae) 2 2 0 0
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Great Crested Grebe:Podiceps cristatus(Podicipedidae) 2 2 0 0
Common Tern:Sterna hirundo(Laridae) 2 2 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Great Crested Grebe:Podiceps cristatus(Podicipedidae) ** ** 100.00% **
Common Tern:Sterna hirundo(Laridae) ** ** 100.00% **
*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
  • Contact with wild species
Epidemiological comments During the active monitoring of the ornithofauna in the surroundings of Ubsu-Nur Lake, a few wild birds were found dead. Highly pathogenic avian influenza (HPAI) virus H5N1 was detected and isolated in samples from carcasses of two great crested grebes and two common terns. No HPAI virus H5N1 has been detected in samples from healthy migratory birds of different species: great crested grebes (Podiceps cristatus), great cormorant (Phalacrocorax carbo), red-crested pochard (Netta rufina), gadwall (Anas strepera), common tern (Sterna hirundo), common coot (Fulica atra), black-headed gull (Larus ridibundus). Sequence analysis of the isolates showed that they belonged to the Asian HPAI virus H5N1 lineage, clade 2.3.2.1, and had close similarity with previous Russian H5N1 virus isolates of years 2014-2015.
Control measures
Measures applied
  • Screening
  • Control of wildlife reservoirs
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Common Tern real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2015 Positive
All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Common Tern virus isolation 09/06/2015 Positive
All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Crested Grebe reverse transcription - polymerase chain reaction (RT-PCR) 09/06/2015 Positive
All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Crested Grebe virus isolation 09/06/2015 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations