Russia - 1 new outbreak of highly pathogenic avian influenza H5 in wild birds in the surroundings of Ubsu-Nur Lake (OIE, June 17, 2016)

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Highly pathogenic avian influenza, Russia

Information received on 17/06/2016 from Dr Evgeny Nepoklonov, Deputy Head, Federal Service for Veterinary and Phytosanitary Surveillance, Ministry of Agriculture, Moscow, Russia

Summary Report type Immediate notification Date of start of the event 09/06/2016 Date of confirmation of the event 09/06/2016 Report date 17/06/2016 Date submitted to OIE 17/06/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 06/08/2015 Manifestation of disease Sub-clinical infection Causal agent Highly pathogenic avian influenza virus Serotype H5 Nature of diagnosis Laboratory (basic), Laboratory (advanced) This event pertains to a defined zone within the country

New outbreaks (1)

Outbreak 1 Ubsu-Nur, Ovyursky, RESPUBLIKA TYVA Date of start of the outbreak 09/06/2016 Outbreak status Resolved (15/06/2016) Epidemiological unit Not applicable Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Grey Heron:Ardea cinerea(Ardeidae) 4 0 4 0 Great Crested Grebe:Podiceps cristatus(Podicipedidae) 1 0 1 0 Black-headed Gull:Larus ridibundus(Laridae) 6 0 6 0 Common Tern:Sterna hirundo(Laridae) 1 0 1 0 Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) 4 0 4 0 Anatidae (unidentified):Anatidae (incognita)(Anatidae) 1 0 1 0

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Grey Heron:Ardea cinerea(Ardeidae) 4 0 4 0 Great Crested Grebe:Podiceps cristatus(Podicipedidae) 1 0 1 0 Black-headed Gull:Larus ridibundus(Laridae) 6 0 6 0 Common Tern:Sterna hirundo(Laridae) 1 0 1 0 Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) 4 0 4 0 Anatidae (unidentified):Anatidae (incognita)(Anatidae) 1 0 1 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Grey Heron:Ardea cinerea(Ardeidae) ** ** 0.00% ** Great Crested Grebe:Podiceps cristatus(Podicipedidae) ** ** 0.00% ** Black-headed Gull:Larus ridibundus(Laridae) ** ** 0.00% ** Common Tern:Sterna hirundo(Laridae) ** ** 0.00% ** Great Cormorant:Phalacrocorax carbo(Phalacrocoracidae) ** ** 0.00% ** Anatidae (unidentified):Anatidae (incognita)(Anatidae) ** ** 0.00% ** *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 shot. Genome of H5 avian influenza virus was detected in 17 samples from carcasses of birds [black-headed gull (Larus ridibundus), grey heron (Ardea cinerea), common tern (Sterna hirundo), great crested grebe (Podiceps cristatus), great cormorant (Phalacrocorax carbo), duck (Anatidae)]. Sequence analysis of the isolates showed that they belonged to the Asian HPAI virus H5 lineage A/Guandong/1/96, clade 2.3.4.4.

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) Anatidae (unidentified) virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Black-headed Gull virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Common Tern virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Cormorant virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Crested Grebe virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Grey Heron virus sequencing 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Anatidae (unidentified) real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Black-headed Gull real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Common Tern real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Cormorant real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Great Crested Grebe real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive All-Russian Research Institute for Animal Health (FGBI-ARRIAH) (National laboratory) Grey Heron real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 09/06/2016 Positive

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

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