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

Information received on 27/03/2018 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. 20
Date of start of the event 30/06/2017
Date of confirmation of the event 30/06/2017
Report date 27/03/2018
Date submitted to OIE 27/03/2018
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)
New outbreaks (3)
Outbreak 1 (HPAI_H5N8_2017_167) HPAI_H5N8_2017_167, City of Cape Town, Western Cape Province
Date of start of the outbreak 19/10/2017
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2347 86 86 80 0
Affected population Hobby geese and ducks
Outbreak 2 (HPAI_H5N8_2017_168) HPAI_H5N8_2017_168, Sundays River Valley, Eastern Cape Province
Date of start of the outbreak 21/02/2018
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) 2 2 0 0
Outbreak 3 (HPAI_H5N8_2017_169) HPAI_H5N8_2017_169, Madibeng, North West Province
Date of start of the outbreak 11/03/2018
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 82 8 8 0 0
Affected population Hobby Swans
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 2429 94 94 80 0
Swift tern:Thalasseus bergii(Laridae) 2 2 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 3.87% 3.87% 100.00% 7.16%
Swift tern:Thalasseus bergii(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
  • 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.