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

Information received on 15/05/2018 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
Summary
Report type Follow-up report No. 22
Date of start of the event 30/06/2017
Date of confirmation of the event 30/06/2017
Report date 14/05/2018
Date submitted to OIE 15/05/2018
Reason for notification New strain of a listed disease in the country
Causal agent Highly pathogenic influenza A virus
Serotype H5N8
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (24/07/2017)
Follow-up report No. 1 (15/08/2017)
Follow-up report No. 2 (22/08/2017)
Follow-up report No. 3 (31/08/2017)
Follow-up report No. 4 (05/09/2017)
Follow-up report No. 5 (08/09/2017)
Follow-up report No. 6 (15/09/2017)
Follow-up report No. 7 (22/09/2017)
Follow-up report No. 8 (29/09/2017)
Follow-up report No. 9 (06/10/2017)
Follow-up report No. 10 (17/10/2017)
Follow-up report No. 11 (30/10/2017)
Follow-up report No. 12 (13/11/2017)
Follow-up report No. 13 (29/11/2017)
Follow-up report No. 14 (08/01/2018)
Follow-up report No. 15 (22/01/2018)
Follow-up report No. 16 (02/02/2018)
Follow-up report No. 17 (21/02/2018)
Follow-up report No. 18 (01/03/2018)
Follow-up report No. 19 (09/03/2018)
Follow-up report No. 20 (27/03/2018)
Follow-up report No. 21 (17/04/2018)
Follow-up report No. 22 (14/05/2018)
New outbreaks (11)
Outbreak 1 (HPAI_H5N8_2017_184) HPAI_H5N8_2017_184, Saldanha Bay, Western Cape Province
Date of start of the outbreak 07/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 4177 4177 0 0
Outbreak 2 (HPAI_H5N8_2017_182) HPAI_H5N8_2017_182, City of Cape Town, Western Cape Province
Date of start of the outbreak 12/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Common Tern:Sterna hirundo(Laridae) 1 0 1 0
Outbreak 3 (HPAI_H5N8_2017_179) HPAI_H5N8_2017_179, Kouga, Eastern Cape Province
Date of start of the outbreak 12/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 1 0 1 0
Outbreak 4 (HPAI_H5N8_2017_181) HPAI_H5N8_2017_181, City of Cape Town, Western Cape Province
Date of start of the outbreak 18/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cape cormorant:Phalacrocorax capensis(Phalacrocoracidae) 2 2 0 0
Outbreak 5 (HPAI_H5N8_2017_180) HPAI_H5N8_2017_180, City of Cape Town, Western Cape Province
Date of start of the outbreak 20/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 1778 1728 50 0
Outbreak 6 (HPAI_H5N8_2017_183) HPAI_H5N8_2017_183, Bergrivier, Western Cape Province
Date of start of the outbreak 25/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 1 0 1 0
Outbreak 7 (HPAI_H5N8_2017_187) HPAI_H5N8_2017_187, City of Cape Town, Western Cape Province
Date of start of the outbreak 28/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Hartlaub´s gull:Chroicocephalus hartlaubii(Laridae) 1 0 1 0
Outbreak 8 (HPAI_H5N8_2017_178) HPAI_H5N8_2017_178, Saldanha Bay, Western Cape Province
Date of start of the outbreak 05/04/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 1 0 1 0
Outbreak 9 (HPAI_H5N8_2017_186) HPAI_H5N8_2017_186, City of Cape Town, Western Cape Province
Date of start of the outbreak 08/04/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Hartlaub´s gull:Chroicocephalus hartlaubii(Laridae) 2 0 2 0
Outbreak 10 (HPAI_H5N8_2017_176) HPAI_H5N8_2017_176, City of Mbombela, Mpumalanga
Date of start of the outbreak 09/04/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 40 1 1 0 0
Affected population Domestic hobby swan
Outbreak 11 (HPAI_H5N8_2017_185) HPAI_H5N8_2017_185, City of Cape Town, Western Cape Province
Date of start of the outbreak 12/04/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Hartlaub´s gull:Chroicocephalus hartlaubii(Laridae) 1 1 0 0
Summary of outbreaks Total outbreaks: 11
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swift tern:Thalasseus bergii(Laridae) 5958 5905 53 0
Common Tern:Sterna hirundo(Laridae) 1 0 1 0
Cape cormorant:Phalacrocorax capensis(Phalacrocoracidae) 2 2 0 0
Hartlaub´s gull:Chroicocephalus hartlaubii(Laridae) 4 1 3 0
Birds 40 1 1 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swift tern:Thalasseus bergii(Laridae) ** ** 99.11% **
Common Tern:Sterna hirundo(Laridae) ** ** 0.00% **
Cape cormorant:Phalacrocorax capensis(Phalacrocoracidae) ** ** 100.00% **
Hartlaub´s gull:Chroicocephalus hartlaubii(Laridae) ** ** 25.00% **
Birds 2.50% 2.50% 100.00% 2.50%
*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
  • Screening
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.