OIE: Highly pathogenic avian influenza(H5N8), Russia

Information received on 14/10/2020 from Dr Nikolay Vlasov, Deputy Head, Federal Service for Veterinary and Phytosanitary Surveillance , Ministry of Agriculture, Moscou, Russia
Summary
Report type Follow-up report No. 7
Date of start of the event 11/08/2020
Date of confirmation of the event 13/08/2020
Report date 14/10/2020
Date submitted to OIE 14/10/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 20/05/2019
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (25/08/2020)
Follow-up report No. 1 (01/09/2020)
Follow-up report No. 2 (03/09/2020)
Follow-up report No. 3 (14/09/2020)
Follow-up report No. 4 (21/09/2020)
Follow-up report No. 5 (28/09/2020)
Follow-up report No. 6 (05/10/2020)
Follow-up report No. 7 (14/10/2020)
New outbreaks (2)
Outbreak 1 Pavlogradka, Pavlogradsky, Omskaya Oblast
Date of start of the outbreak 30/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 76 7 7 0
Outbreak 2 Novyj Svet, Kalachinsky, Omskaya Oblast
Date of start of the outbreak 30/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1700 55 55 0
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1776 62 62 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 3.49% 3.49% 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
  • Unknown or inconclusive
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Screening
  • Traceability
  • Quarantine
  • Official destruction of animal products
  • 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
  • Stamping out
Diagnostic test results
Laboratory name and type Species Test Test date Result
Omskaya Veterinary Laboratory (Local laboratory) Birds polymerase chain reaction (PCR) 04/10/2020 Positive
All-Russian Research Institute for Animal Health (OIE Reference Laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 13/10/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.