[top]Disease Information
20 July 2006
Vol. 19 - No. 29Contents
BONAMIA OSTREAE IN THE UNITED KINGDOM/GREAT BRITAIN
See also: 25 May 2006
(Date of previous outbreak of Bonamia ostreae in the United Kingdom/Great Britain reported to the OIE: May 2006).
Immediate notification report
Information received on 13 July 2006 from Dr Debby Reynolds, Director General for Animal Health and Welfare, Department for Environment, Food and Rural Affairs (DEFRA), London:
Report date: 13 July 2006.
Reason for immediate notification: first occurrence in a zone of the country.
Identification of agent: Bonamia ostreae.
Host species: flat oyster (Ostrea edulis).
Date of first confirmation of the event: 30 June 2006.
Date of start of the event: 27 April 2006.
Clinical disease: yes.
Nature of diagnosis: basic and advanced laboratory tests.
Details of occurrence:
First administrative division Lower administrative division (region) Type of epide-miolo-gical unit Name of the location Latitude Longitude Date of start of the occurrence Spe-cies Number of animals in the occurrence susceptible cases deaths destroyed slaugh-tered Scotland Highland farm Loch Sunart 56º42.29'N 5º46.95'W 27 April 2006 mol 1,100 … … … 0 Description of affected population: open fallow farmed site.
Diagnosis:
Laboratories where diagnostic tests were performed Species examined Diagnostic tests used Date Results Fisheries Research Services, Aberdeen (national reference laboratory) mol histology 12 June 2006 positive French Recherche Institute for Exploitation of the Sea (IFREMER), La Tremblade (EU reference laboratory) mol histology and in situ hybridisation 30 June 2006 positive Source of occurrence or origin of infection: unknown or inconclusive.
Control measures
A. Undertaken:
- emergency harvest;
- surveillance outside containment and/or buffer zone;
- zoning;
- within-country movement controls.
B. To be undertaken:
- tracing back;
- surveillance within containment and/or buffer zone.
Treatment of affected animals: no.
Other details/comments:
The site encompasses a small area of the sea bed, exposed only at low spring tide, on which post graded Ostrea edulis, too small for market, have been relaid. The site is considered as fallow, following inspection on 16 June 2006 when 31 Ostrea edulis were removed and tested.
On the first low water spring tide, the area is to be raked and searched for any remaining oysters. In addition, a diver is to search sublittorally for the presence of any which may have migrated from the designated area.
Anecdotal evidence suggests no wild populations of native oysters in the loch. However, investigations will be made to confirm this. If any are found they will be tested for Bonamia.
Final report: no.
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* *VIRAL HAEMORRHAGIC SEPTICAEMIA IN CANADA
(Date of previous outbreak of viral haemorrhagic septicaemia in Canada reported to the OIE: 2005).
Immediate notification report
Information received on 14 July 2006 from Dr Brian Evans, Chief Veterinary Officer, Canadian Food Inspection Agency, Ottawa:
Report date: 12 July 2006.
Reason for immediate notification: occurrence in a new host species.
Identification of agent: strain IVb of the viral haemorrhagic septicaemia virus (VHSV).
New host species:
Latin name Common name Aplodinotus grunniens freshwater drum Lepomis macrochirus bluegill Micropterus dolomieui smallmouth bass Pomoxis nigromaculatus black crappie These species of fish are currently not listed in the Aquatic Animal Health Code as being susceptible to VHS.
Date of first confirmation of the event: 10 May 2006.
Date of start of the event: 10 May 2006.
Clinical disease: yes.
Nature of diagnosis: clinical and basic and advanced laboratory tests.
Details of occurrence:
First administrative division (province) Type of epide-miological unit Name of the location Date of start of the occurrence Spe-cies Number of animals in the occurrence susceptible cases deaths destroyed slaugh-tered Ontario lake Lake St. Clair 10 May 2006 pis … … … … … Depending on the species affected, die-offs have ranged from a few fish to several thousand.
Affected population: wild fish in fresh water.
Diagnosis:
Laboratories where diagnostic tests were performed Species examined Diagnostic tests used Dates Results University of Guelph, College of Veterinary Medicine and Fish Health Laboratory (local laboratory) pis - cell culture
- PCR(1)
10 May 2006 positive Pacific Biological Station, Fisheries and Oceans (Canada reference laboratory for VHS) pis PCR(1) 10 May 2006 positive Source of occurrence or origin of infection: unknown or inconclusive.
Treatment of infected animals: no.
Vaccination prohibited: no.
Other details/comments: monitoring will continue and any significant information will be reported.
Final report: yes.
(1) PCR: polymerase chain reaction
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* *ANTHRAX IN PERU
(Date of previous outbreak of anthrax in Peru reported to the OIE: January 2005).
Immediate notification report
Translation of information received on 14 July 2006 from Dr Oscar Dominguez Falcon, Director General for Animal Health, National Animal Health Service (SENASA), Ministry of Agriculture, Lima:
Report date: 13 July 2006.
Reason for immediate notification: re-occurrence of a listed disease or infection in a country or zone/compartment following a report declaring the outbreak(s) ended.
Identification of agent: Bacillus anthracis.
Date of first confirmation of the event: 9 July 2006.
Date of start of the event: 9 July 2006.
Clinical disease: yes.
Nature of diagnosis: post-mortem and laboratory.
Details of outbreak:
First administrative division (department) Lower administrative division (region) Type of epide-miolo-gical unit Name of the location Date of start of the outbreak Spe-cies Number of animals in the outbreak susceptible cases deaths destroyed slaugh-tered Lambayeque Chiclayo farm Monsefú 9 July 2006 bov 13 1 1 1 0 Description of affected population: a calf aged 7 months in an extensive small farm (milk production).
Diagnosis:
Laboratory where diagnostic tests were performed Species examined Diagnostic tests used Date Results Animal Health Diagnosis Center (SENASA) bov - culture and isolation
- biochemical and sensitivity tests
13 July 2006 positive Source of outbreak or origin of infection: unknown or inconclusive.
Control measures undertaken:
- quarantine;
- movement control inside the country;
- zoning;
- vaccination;
- disinfection of infected premises/establishment(s).
Vaccination in response to the outbreak:
First administrative division Species Total number of animals vaccinated Details of the vaccine Lambayeque bov 1,371 attenuated Sterne strain ovi 109 attenuated Sterne strain cap 19 attenuated Sterne strain sui 67 attenuated Sterne strain Treatment of affected animals: no.
Vaccination prohibited: no.
Other details/comments: No new suspected cases have been observed. Epidemiological surveillance continues.
Final report: no.
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* *AVIAN INFLUENZA IN SUDAN
Follow-up report No. 2See also: 21 December 2006, 5 October 2006, 11 May 2006, 20 April 2006
Information received on 19 July 2006 from Dr Ahmed Mustafa Hassan, Undersecretary, Federal Ministry of Animal Resources, Khartoum:
End of previous report period: 7 May 2006 (see Disease Information, 19 [19], 391, dated 11 May 2006).
End of this report period: 15 July 2006.
Identification of agent: highly pathogenic avian influenza virus subtype H5N1.
Date of first confirmation of the event: 17 April 2006.
Date of start of the event: 20 February 2006.
Clinical disease: yes.
Nature of diagnosis: clinical and laboratory.
Details of outbreaks (complementary data):
First administrative division (State) Lower administrative division (locality) Type of epide-miolo-gical unit Name of the location Date of start of the outbreak Spe-cies Number of animals in the outbreaks susceptible cases deaths destroyed slaugh-tered River Nile Atbara farm Atbara 20 February 2006 avi 1,000 100 100 … 0 Gezira Kamleen farm Butri
Masuidia
Sina'at
Bahri16 April 2006
15 April 2006
16 April 2006
12 April 2006avi 21,979
15,000
45,000
20,9352,000
6,000
3,000
9,0002,000
6,000
3,000
9,00019,979
9,000
42,000
11,9350 New outbreaks:
First administrative division (State) Lower administrative division (locality) Type of epide-miolo-gical unit Name of the location Date of start of the outbreak Spe-cies Number of animals in the outbreaks susceptible cases deaths destroyed slaugh-tered Khartoum Khartoum North farm Kuku … avi 1,000 200 200 800 0 Khartoum Khartoum North farm Hag Yousif … avi 2,000 970 970 1,030 0 Khartoum Taiba Al Hasanab farm Farm 1
Farm 2avi 20,400
2,8831,500
1,2001,500
1,20018,900
1,6830 Description of affected population: poultry in both closed and backyard systems.
Diagnosis:
Laboratory where diagnostic tests were performed Species examined Diagnostic tests used Date Results OIE/FAO Reference Laboratory for avian influenza and Newcastle disease, Padova, Italy avi - RT-PCR(1)
- virus isolation
- sequence analysis
1-13 June 2006 - positive for H5N1
- amino acid sequence at cleavage site reveals a HPAI profile
Other details/comments: the disease has not spread and remains confined to Khartoum, Gezira and River Nile States. A velogenic strain of Newcastle disease virus has been isolated in one sample from Soba (Khartoum) which has been found negative for HPAI.
Final report: no.
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* *NEWCASTLE DISEASE IN BRAZIL
Follow-up report No. 2See also: 16 November 2006, 9 November 2006, 2 November 2006, 21 September 2006, 31 August 2006, 17 August 2006, 10 August 2006, 3 August 2006, 13 July 2006, 6 July 2006
Translation of information received on 19 July 2006 from Dr Jamil Gomes de Souza, Director, Department of Animal Protection (DDA), Ministry of Agriculture, Livestock and Food Supply, Brasilia:
End of previous report period: 10 July 2006 (see Disease Information, 19 [28], 531, dated 13 July 2006).
End of this report period: 19 July 2006.
Identification of agent: avian paramyxovirus type 1 (APMV-1).
Date of first confirmation of the event: 4 July 2006.
Date of start of the event: 2 May 2006.
In addition to maintaining the measures indicated in follow-up report No. 1, the premises where the outbreak occurred have been depopulated.
On 11 July 2006, the 8,700 chickens in the only commercial poultry farm situated in the protection zone (3-km radius) were slaughtered. They were 38 days old, their growth rate was normal and they presented no clinical signs of the disease. They were slaughtered by a Federal Inspection Service (SIF) approved firm situated within the surveillance zone (10-km radius around the outbreak).
To date, no suspected cases of Newcastle disease have been detected in premises within a radius of 10 km. Epidemiological investigations are still in progress.
Final report: no.
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* *CLASSICAL SWINE FEVER IN CROATIA
See also: 7 December 2006, 30 November 2006, 23 November 2006, 2 November 2006, 21 September 2006, 14 September 2006, 7 September 2006
(Date of previous outbreak of classical swine fever in Croatia reported to the OIE: June 2002).
Immediate notification report
Information received on 20 July 2006 from Dr Mate Brstilo, Director of the Veterinary Administration, Ministry of Agriculture and Forestry, Zagreb:
Report date: 20 July 2006.
Reason for immediate notification: re-occurrence of a listed disease or infection in a country or zone/compartment following a report declaring the outbreak(s) ended.
Identification of agent: classical swine fever virus.
Date of first confirmation of the event: 19 July 2006.
Date of start of the event: unknown.
Clinical disease: yes.
Nature of diagnosis: clinical, post-mortem and laboratory.
Details of outbreaks:
First administrative division (county) Lower administrative division Type of epide-miolo-gical unit Date of start of the outbreak Spe-cies Number of animals in the outbreaks susceptible cases deaths destroyed slaugh-tered Vukovarsko srijemska Borovo farm … sui 13 4 4 9 0 Vukovar farm … sui 5 2 2 3 0 Description of affected population: domestic pigs in two small family-run farms. Pigs in one of the farms were kept on pasture.
Diagnosis:
Laboratory where diagnostic tests were performed Species examined Diagnostic tests used Date Results Croatian Veterinary Institute, Zagreb sui ELISA(1) 19 July 2006 positive Source of outbreaks or origin of infection: contact with wild animals suspected.
Control measures undertaken:
- stamping out;
- quarantine;
- movement control inside the country;
- screening;
- zoning;
- disinfection of infected premises/establishment(s).
Treatment of affected animals: no.
Vaccination prohibited: yes.
Final report: no.
(1)ELISA: enzyme-linked immunosorbent assay
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