[Source: OIE, full page: (LINK). Edited.]
Low pathogenic avian influenza (poultry) H7, South Africa
Information received on 30/08/2013 from Dr Bothle Michael Modisane, Chief Director , Department of Agriculture, Forestry and Fisheries, Animal Production and Health, PRETORIA, South Africa
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Low pathogenic avian influenza (poultry) H7, South Africa
Information received on 30/08/2013 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 30/07/2013
- Date of pre-confirmation of the event 01/08/2013
- Report date 30/08/2013
- Date submitted to OIE 30/08/2013
- Reason for notification Reoccurrence of a listed disease
- Date of previous occurrence 05/2012
- Manifestation of disease Sub-clinical infection
- Causal agent Low pathogenic avian influenza virus
- Serotype H7
- Nature of diagnosis Laboratory (advanced)
- This event pertains to a defined zone within the country
- New outbreaks (1)
- Outbreak 1 (LPNAI_Gau2013_001) LPNAI_Gau2013_001, City of Tshwane, GAUTENG
- Date of start of the outbreak 30/07/2013
- Outbreak status Continuing (or date resolved not provided)
- Epidemiological unit Farm
- Affected animals: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Birds - 2000 ? 4 ? 0 ? 0 ? 0
- Affected population Captive cattle egrets, umbrella cockatoo and eagle owl
- Outbreak 1 (LPNAI_Gau2013_001) LPNAI_Gau2013_001, City of Tshwane, GAUTENG
- Summary of outbreaks
- Total outbreaks: 1
- Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Birds ? 2000 ? 4 ? 0 ? 0 ? 0
- Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
- Birds - 0.20% - 0.00% - 0.00% - 0.00%
- *Removed from the susceptible population through death, destruction and/or slaughter
- Total animals affected: Species ? Susceptible ? Cases ? Deaths ? Destroyed ? Slaughtered
- Total outbreaks: 1
- Epidemiology
- Source of the outbreak(s) or origin of infection
- Unknown or inconclusive
- Source of the outbreak(s) or origin of infection
- Epidemiological comments
- This outbreak is more than 1,000 km away from any other reported H7N1 or H7N7 outbreaks and occurred in species other than ostriches.
- There is no evidence to link this outbreak to previous outbreaks.
- This outbreak occurred in indigenous wild birds and an exotic parrot kept in captivity.
- The birds were tested for planned export.
- They tested positive on RT-PCR for H7.
- The samples did not render enough material to allow sequencing or virus isolation and the N-type could not be determined.
- It is highly unlikely that further information on the N-type will be obtained.
- For this reason, the veterinary services decided to report it as a new event.
- Note by the OIE Animal Health Information Department:
- H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2012).
- Control measures
- Measures applied
- Quarantine
- Screening
- No vaccination
- No treatment of affected animals
- Measures to be applied
- No other measures
- Measures applied
- 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) - 01/08/2013 ? Positive
- Laboratory name and type ? Species ? Test - Test date ? Result
- Future Reporting
- The event is continuing. Weekly follow-up reports will be submitted.
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