Low pathogenic avian influenza (poultry),
South Africa
Information received on 13/11/2020 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
Summary
Report type Immediate notification
Date of start of the event 04/08/2020
Date of confirmation of the event 13/08/2020
Report date 13/11/2020
Date submitted to OIE 13/11/2020
Reason for notification New strain of a listed disease in the country
Causal agent Low pathogenic avian influenza virus (undefined H7 virus)
Serotype H7
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (13/11/2020)
Follow-up report No. 1 (23/11/2020)
Follow-up report No. 2 (02/12/2020)
Follow-up report No. 3 (11/01/2021)
New outbreaks (11)
Outbreak 1 (AI_H7_2020_WCP_001) AI_H7_2020_WCP_001, Hessequa, Western Cape Province
Date of start of the outbreak 04/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1125 12 0 0 0
Affected population Commercial ostriches
Outbreak 2 (AI_H7_2020_WCP_002) AI_H7_2020_WCP_002, Kannaland, Western Cape Province
Date of start of the outbreak 18/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1297 24 0 0 0
Affected population Commercial ostriches
Outbreak 3 (AI_H7_2020_WCP_007) AI_H7_2020_WCP_007, Oudtshoorn, Western Cape Province
Date of start of the outbreak 19/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1376 1 0 0 0
Affected population Commercial ostriches
Outbreak 4 (AI_H7_2020_WCP_005) AI_H7_2020_WCP_005, Hessequa, Western Cape Province
Date of start of the outbreak 19/08/2020
Outbreak status Resolved (21/12/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 149 6 0 0 0
Affected population Commercial ostriches
Outbreak 5 (AI_H7_2020_WCP_011) AI_H7_2020_WCP_011, Hessequa, Western Cape Province
Date of start of the outbreak 20/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1990 40 0 0 0
Affected population Commercial ostriches
Outbreak 6 (AI_H7_2020_WCP_006) AI_H7_2020_WCP_006, Oudtshoorn, Western Cape Province
Date of start of the outbreak 25/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 54 22 0 0 0
Affected population Commercial ostriches
Outbreak 7 (AI_H7_2020_WCP_008) AI_H7_2020_WCP_008, Kannaland, Western Cape Province
Date of start of the outbreak 27/08/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 226 68 0 0 0
Affected population Commercial ostriches
Outbreak 8 (AI_H7_2020_WCP_010) AI_H7_2020_WCP_010, Oudtshoorn, Western Cape Province
Date of start of the outbreak 01/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1100 1 0 0 0
Affected population Commercial ostriches
Outbreak 9 (AI_H7_2020_WCP_003) AI_H7_2020_WCP_003, Oudtshoorn, Western Cape Province
Date of start of the outbreak 02/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 731 15 0 0 0
Affected population Commercial ostriches
Outbreak 10 (AI_H7_2020_WCP_004) AI_H7_2020_WCP_004, Swellendam, Western Cape Province
Date of start of the outbreak 03/09/2020
Outbreak status Resolved (02/11/2020)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 906 16 0 0 0
Affected population Commercial ostriches
Outbreak 11 (AI_H7_2020_WCP_009) AI_H7_2020_WCP_009, Hessequa, Western Cape Province
Date of start of the outbreak 07/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 226 9 0 0 0
Affected population Commercial ostriches
Summary of outbreaks Total outbreaks: 11
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 9180 214 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 2.33% 0.00% 0.00% 0.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Coordinates modified to protect confidentiality as required by South African Legislation. H7 infection detected on HI serology. No further typing successful.
Control measures
Measures applied
  • Screening
  • Traceability
  • Quarantine
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Agricultural Research Council - Onderstepoort Veterinary Institute (National laboratory) Birds haemagglutination inhibition test (HIT) 13/08/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations