[top]Disease Information
30 September 2005
Vol. 18 - No. 39Contents
KOI HERPESVIRUS DISEASE IN SINGAPORE
See also: 21 October 2005
Immediate notification report
Information received on 23 September 2005 from Dr Chua Sin Bin, Chief Executive Officer, Agri-food and Veterinary Authority (AVA) of Singapore:
Report date: 23 September 2005.
Reason for immediate notification: emerging disease or pathogenic agent with findings that are of epidemiological significance to other countries.
Precise identification of agent: koi herpesvirus.
Date of first confirmation of the event: 22 September 2005.
Date of start of the event: 22 September 2005.
Clinical disease: no.
Nature of diagnosis: advanced laboratory tests.
Details of occurrence:
First administrative division Date of start of the occurrence Spe-cies Number of animals in the occurrence susceptible cases deaths destroyed slaugh-tered Singapore 22 Sept 2005 pis 30 1 0 30 0 Description of affected population: koi carp imported as a trial batch of 30 fish from a new source.
Diagnosis: the entire batch was submitted to the laboratory for PCR(1) testing for koi herpesvirus.
Laboratory where diagnostic tests were performed Diagnostic tests used Date Results Animal and Plant Health Laboratory Division, AVA PCR(1) 22 Sept 2005 positive Source of outbreak or origin of infection: legal movement.
Control measures:
A. Undertaken:
- quarantine;
- tracing back;
- surveillance within containment and/or buffer zone.
B. To be undertaken: surveillance outside containment and/or buffer zone.
Treatment of affected animals: no.
Other details/comments: the entire batch of affected fish was destroyed. Investigations revealed that there was no mixing with other susceptible species.
(1) PCR: polymerase chain reaction
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN KAZAKHSTAN
Follow-up report No. 2 (final report)See also: 12 August 2005, 5 August 2005
Translation of information received on 23 September 2005 from Dr Asilbek A. Kozhumratov, Director, Veterinary Control Department, Ministry of Agriculture, Astana:
End of previous report period: 9 August 2005 (see Disease Information, 18 [32], 258, dated 12 August 2005).
End of this report period: 23 September 2005.
By Decision No. 259/5 of 1 August 2005, quarantine was imposed in the affected zone and zones at risk, disinfection measures were applied, awareness-raising was conducted, and compensation was paid by the Government to the owners of destroyed birds.
By Decision No. 318/6 of 8 September 2005 of the local Authorities, quarantine was lifted in the affected area.
No new cases of diseased birds have been reported in Kazakhstan.
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* *VESICULAR STOMATITIS IN THE UNITED STATES OF AMERICA
Follow-up report No. 18See also: 28 December 2006, 7 December 2006, 23 November 2006, 16 November 2006, 2 November 2006, 26 October 2006, 19 October 2006, 12 October 2006, 5 October 2006, 28 September 2006, 21 September 2006, 14 September 2006, 7 September 2006, 31 August 2006, 24 August 2006, 13 April 2006, 16 February 2006, 26 January 2006, 12 January 2006, 23 December 2005, 9 December 2005, 18 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 14 October 2005, 7 October 2005, 23 September 2005, 16 September 2005, 2 September 2005, 26 August 2005, 19 August 2005, 5 August 2005, 29 July 2005, 15 July 2005, 8 July 2005
Information received on 28 September 2005 from Dr Peter Fernandez, Associate Administrator, Animal and Plant Health Inspection Service (APHIS), United States Department of Agriculture (USDA), Washington, DC:
End of previous report period: 18 September 2005 (see Disease Information, 18 [38], 313, dated 23 September 2005).
End of this report period: 25 September 2005.
Precise identification of agent: vesicular stomatitis virus type New Jersey.
Date of first confirmation of the event: 27 April 2005.
Date of start of the event: 16 April 2005.
Diagnosis:
Laboratories where diagnosis was made Species examined Diagnostic tests used Dates Results National Veterinary Services Laboratories, Ames, Iowa equ virus isolation 20-21 Sept 2005 positive for virus type New Jersey equ complement fixation test 24 Sept 2005 positive Foreign Animal Disease Diagnostic Laboratory, Plum Island, New York bov complement fixation test 24 Sept 2005 positive bov virus isolation 25 Sept 2005 positive for virus type New Jersey Source of outbreaks or origin of infection: unknown or inconclusive (vectors?).
Control measures undertaken:
- control of arthropods;
- quarantine;
- on-going surveillance activities are being performed by APHIS Veterinary Services and Arizona(1), Colorado, Montana, New Mexico(1), Texas(1), Utah and Wyoming State Departments of Agriculture personnel.
Treatment of affected animals: no.
Vaccination prohibited: yes.
(1) Note: no new vesicular stomatitis-positive premises have been reported in Texas since May 2005, in Arizona since June 2005 and in New Mexico since August 2005.
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN SOUTH AFRICA
Follow-up report no. 6 (final report)See also: 2 November 2006, 28 September 2006, 10 August 2006, 3 August 2006, 13 July 2006, 6 July 2006
Information received on 15 and 28 September 2005 from Dr Botlhe Modisane, Senior Manager of Animal Health, National Department of Agriculture, Pretoria:
End of previous report period: 3 June 2005 (see Disease Information, 18 [23], 145, dated 10 June 2005).
End of this report period: 28 September 2005.
The results of a countrywide, follow-up survey clearly demonstrate the highly pathogenic avian influenza (HPAI)-free status of the whole of South Africa. All test results from ostriches, commercial chickens and non-commercial chickens were negative for both the H5 and H7 subtypes of avian influenza virus.
A stamping-out policy was followed and 26,454 ostriches were culled. The last culling and disinfection operations were done on 9 December 2004.
The control and eradication campaigns conducted after July 2004, in the Eastern Cape and Western Cape Provinces and on one farm in the Northern Cape Province, were successful in eradicating any possibly circulating avian influenza virus and successfully prevented the spread of the infection to other parts of the country.
All ostriches on exposed properties in the Eastern Cape Province were culled. All exposed slaughter ostriches in the Western Cape and Northern Cape Provinces had been slaughtered by August 2005. Potentially exposed breeder birds have been put under permanent movement restriction and the Western Cape Province results from the new crop of slaughter birds less than 10 months of age clearly demonstrate the complete absence of HPAI virus circulation since October 2004.
Based on the above and in accordance with Article 2.7.12.4. of the Terrestrial Animal Health Code, South Africa considers itself free from HPAI and lifts all movement and trade restrictions for all poultry, including ostriches.
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* *CAPRINE AND OVINE BRUCELLOSIS (BRUCELLA MELITENSIS) IN CROATIA
Follow-up report No. 2 (final report)Information received on 29 September 2005 from Dr Mate Brstilo, Director of the Veterinary Administration, Ministry of Agriculture and Forestry, Zagreb:
End of previous report period: 1 June 2005 (see Disease Information, 18 [23], 143, dated 10 June 2005).
End of this report period: 29 September 2005.
Date of first confirmation of the event: 19 May 2005.
Clinical disease: no.
Nature of diagnosis: laboratory.
Diagnosis: within the framework of regular surveillance of the disease, 8 blood samples (6 ewes and 2 rams) from one sheep flock composed of 28 animals were tested. Two animals (1 ram and 1 ewe) tested positive for Brucella melitensis.
Laboratory where diagnostic tests were performed Species examined Diagnostic tests used Date Result Croatian Veterinary Institute, Zagreb ovi - rose bengal test;
- ELISA(1);
- complement fixation test.
13 Sept 2005 positive Control measures undertaken:
- Positive animals were destroyed;
- quarantine;
- movement control inside the country;
- screening;
- disinfection of infected premises/establishment(s).
Treatment of affected animals: no.
Vaccination prohibited: yes.
Other details/comments: other sheep from the affected flock (1 ram, 24 ewes and 1 lamb) are subject to further testing for B. melitensis.
Final report: yes.
Continuing notification using the six-monthly report: yes.
(1) ELISA: enzyme-linked immunosorbent assay
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN THAILAND
Follow-up report No. 70See also: 16 November 2006, 3 August 2006, 27 July 2006, 6 April 2006, 16 February 2006, 2 February 2006, 26 January 2006, 19 January 2006, 12 January 2006, 23 December 2005, 16 December 2005, 9 December 2005, 2 December 2005, 25 November 2005, 18 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 14 October 2005, 7 October 2005, 23 September 2005, 16 September 2005, 9 September 2005, 2 September 2005, 26 August 2005, 19 August 2005, 12 August 2005, 29 July 2005, 22 July 2005, 15 July 2005
Information received on 30 September 2005 from Dr Yukol Limlamthong, Director General, Department of Livestock Development, Ministry of Agriculture and Cooperatives, Bangkok:
End of previous report period: 22 September 2005 (see Disease Information, 18 [38], 316, dated 23 September 2005).
End of this report period: 29 September 2005.
Date of first confirmation of the event: 23 January 2004.
Nature of diagnosis: clinical, post-mortem and laboratory.
Description of affected population in the new outbreaks: native chickens raised in backyards or free ranging with minimal biosecurity.
Diagnosis:
Laboratory where diagnosis was made Diagnostic tests used Results National Institute of Animal Health and Regional Veterinary Research and Development Centres, DLD - agar-gel precipitation test;
- haemagglutination test;
- pathogen isolation by egg inoculation;
- intracerebral pathogenicity index test.
positive Source of new outbreaks: unknown or inconclusive.
Control measures undertaken:
- stamping out;
- quarantine;
- movement control inside the country;
- screening;
- zoning;
- disinfection of infected premises/establishments.
Vaccination prohibited: yes.
Other details/comments:
Thailand has been conducting the current nationwide surveillance since 1 July 2005.
In this third wave to date, there have been 42 confirmed outbreaks in 5 provinces, since the second wave of HPAI re-occurrence that occurred from 3 July 2004 to 12 April 2005:
Affected province No. of outbreaks Ayudhaya 1 Chainat 1 Kampaengphet 16 Saraburi 5 Suphanburi 19 The five affected provinces are in the Central Poultry Zone of Thailand (see details and map in Disease Information, 18 [35], 290-291, dated 2 September 2005).
All cases involved either free-range poultry or poultry raised in farms with traditional husbandry practices with poor sanitation and insufficient biosecurity.
Affected population No. of outbreaks native poultry 33 quail 3 fighting cocks 2 laying hens 1 laying ducks 1 broilers 2 *
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