Low pathogenic avian influenza (poultry),
South Africa
Information received on 25/10/2016 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 10/07/2016
Date of confirmation of the event 26/09/2016
Report date 24/10/2016
Date submitted to OIE 25/10/2016
Date event resolved 23/04/2018
Reason for notification Recurrence of a listed disease
Date of previous occurrence 2016
Manifestation of disease Sub-clinical infection
Causal agent Low pathogenic avian influenza virus
Serotype H7N2
Nature of diagnosis Laboratory (advanced)
This event pertains to the whole country
Related reports Immediate notification (24/10/2016)
Follow-up report No. 1 (29/11/2016)
Follow-up report No. 2 (08/10/2018)
New outbreaks (1)
Outbreak 1 (LPAI_H7N2_2016_001) LPAI_H7N2_2016_001, George, Western Cape Province
Date of start of the outbreak 10/07/2016
Outbreak status Resolved (07/03/2018)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1790 278 0 0 0
Affected population Commercial ostriches
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 1790 278 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 15.53% 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 Commercial ostriches. This outbreak was first reported as LPAI H5N2 in the follow-up report No. 16 on 20 September 2016. South Africa has been able to determine, with sequencing, that this is in fact LPAI H7N2.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection / Disinfestation
  • 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 (ARC OVI) (National laboratory) Birds real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 26/09/2016 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations