[top]Disease Information
2 December 2005
Vol. 18 - No. 48Contents
HIGHLY PATHOGENIC AVIAN INFLUENZA IN CHINA (PEOPLE'S REP. OF ~)
Follow-up report No. 10See also: 5 October 2006, 17 August 2006, 27 July 2006, 6 July 2006, 22 June 2006, 8 June 2006, 9 February 2006, 12 January 2006, 5 January 2006, 16 December 2005, 25 November 2005, 18 November 2005, 11 November 2005, 11 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 12 August 2005
Information received on 25, 28 and 30 November 2005 from Mr Jia Youling, Director General, Veterinary Bureau, Ministry of Agriculture, Beijing:
End of previous report period: 23 November 2005 (see Disease Information, 18 [47], 448, dated 25 November 2005).
End of this report period: 30 November 2005.
Precise identification of agent: highly pathogenic avian influenza virus serotype H5N1.
Date of first confirmation of the event: 7 June 2005.
Nature of diagnosis: clinical, post-mortem and laboratory.
Details of new outbreaks:
First administrative division Lower administrative division Type of epidemiological unit Name of the location Date of start of the outbreak Species Number of animals in the outbreaks susceptible cases deaths destroyed slaughtered Hunan province Yongzhou city village Laobutou 18 Nov. 2005 avi 6,010 456 402 5,608 0 Inner Mongolia autonomous region Zalantun city village Dashuiquancum 20 Nov. 2005 avi 3,626 246 246 3,380 0 Xinjiang autonomous region Shanshan county village Shanshan 22 Nov. 2005 avi 800 288 288 512 0 Xinjiang autonomous region Xinyuan county village Biesituobie 24 Nov. 2005 avi 680 596 300 380 0 Description of affected population in the new outbreaks: chickens.
Diagnosis:
Laboratory where diagnostic tests were performed Diagnostic tests used Date Results Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin (national reference laboratory for avian influenza) - haemagglutination inhibition test;
- RT-PCR(1).
25-30 Nov. 2005 positive intravenous pathogenicity index (IVPI) test 25-30 Nov. 2005 positive (highly pathogenic) Source of new outbreaks: unknown or inconclusive.
Control measures undertaken:
- stamping out applied to 189,237 birds around the outbreaks;
- quarantine;
- movement control inside the country;
- screening;
- zoning;
- vaccination;
- disinfection of infected premises/establishments;
- dipping/spraying.
Final report: no.
(1) RT-PCR: reverse transcriptase - polymerase chain reaction
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* *FOOT AND MOUTH DISEASE IN BRAZIL
Follow-up report No. 11See also: 26 October 2006, 14 September 2006, 27 July 2006, 22 June 2006, 1 June 2006, 25 May 2006, 27 April 2006, 20 April 2006, 6 April 2006, 16 March 2006, 23 February 2006, 2 February 2006, 19 January 2006, 12 January 2006, 23 December 2005, 9 December 2005, 18 November 2005, 18 November 2005, 4 November 2005, 4 November 2005, 28 October 2005, 28 October 2005, 28 October 2005, 21 October 2005, 21 October 2005, 14 October 2005, 14 October 2005
Translation of information received on 25 November 2005 from Dr Jorge Caetano Junior, Director, Department of Animal Protection (DDA), Ministry of Agriculture, Livestock and Food Supply, Brasilia:
End of previous report period: 17 November 2005 (see Disease Information, 18 [46], 431, dated 18 November 2005).
End of this report period: 25 November 2005.
Identification of agent: foot and mouth disease (FMD) virus serotype O.
Date of first confirmation of the event: 8 October 2005.
Date of start of the event: 26 September 2005.
Surveillance activities in the State of Mato Grosso do Sul have led to the detection of four new outbreaks of foot and mouth disease (FMD), diagnosed on clinical and epidemiological grounds: three in Mundo Novo municipality and one in Japorã municipality.
Details of new outbreaks:
First administrative division (State) Lower administrative division (municipality) Type of epidemiological unit Latitude Longitude Date of start of the outbreak Species Number of animals in the outbreaks susceptible cases deaths destroyed slaughtered Mato Grosso do Sul Japorã farm 23 5058.2S 54 3558.9W 6 Nov. 2005* bov 1,072 10 0 1,072 0 Mato Grosso do Sul Mundo Novo farm 23 5014.3S 54 214.5W 10 Nov. 2005 bov 333 11 0 0 Mato Grosso do Sul Mundo Novo farm 23 5615.3S 54 1613.5W 11 Nov. 2005 bov 9 1 0 9 0 Mato Grosso do Sul Mundo Novo farm 23 5504.8S 54 1649.4W 13 Nov. 2005 bov 27 5 0 27 0 * the official Veterinary Service was notified on 14 November 2005
Description of affected population in the new outbreaks:
In Mundo Novo municipality, two of the affected holdings are situated very close together; they have a total of 36 head of cattle, used for subsistence purposes. The third holding has 333 animals for rearing and breeding.
In Japorã municipality, the affected holding contains 1,072 head of cattle for rearing and breeding. Ten female animals aged between 12 and 24 months showed clinical signs compatible with FMD.
Source of new outbreaks: unknown or inconclusive (investigations in progress).
Control measures
A. Undertaken:
- stamping out;
- quarantine;
- movement control inside the country;
- screening;
- zoning.
B. To be undertaken:
- disinfection of infected premises/establishments.
Other details/comments:
1. Outbreaks in the State of Mato Grosso do Sul:
To date, in the State of Mato Grosso do Sul, 28 outbreaks have been detected and 14,785 FMD-susceptible animals have been slaughtered and destroyed.
The change in the weather in the State of Mato Grosso do Sul has enabled stamping-out activities to be intensified.
The sanitation process is in progress in the holdings where all susceptible animals have been destroyed.
Surveillance measures continue to be implemented, with the municipalities of Eldorado, Iguatemi, Itaquiraí, Japorã and Mundo Novo remaining under a ban. In the latter municipalities, there continues to be a ban on the movement and marketing of FMD-susceptible animals and their products and by-products. The activities of disinfecting vehicles and raising farmers' awareness are being maintained.
2. Suspected outbreaks in the State of Paraná:
There are still 9 suspected outbreaks in the State of Paraná (4 in Loanda, 2 in Amaporã, 2 in Maringá and 1 in Grandes Rios).
Since the first suspected outbreak was notified, 711 rural holdings have been inspected and placed under a ban, involving the inspection of 97,430 FMD-susceptible animals. These holdings are being monitored by 15 mobile teams.
The ban on 32 municipalities with areas located within a 10-km radius of suspected outbreaks in the State of Paraná is being maintained.
Final report: no.
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN ROMANIA
Follow-up report No. 9See also: 2 March 2006, 23 February 2006, 16 February 2006, 19 January 2006, 5 January 2006, 30 December 2005, 23 December 2005, 16 December 2005, 9 December 2005, 2 December 2005, 25 November 2005, 18 November 2005, 4 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 21 October 2005, 14 October 2005, 14 October 2005
Information received on 27 November 2005 from Dr Gabriel Predoi, Director General, National Sanitary Veterinary and Food Safety Authority, Bucharest:
End of previous report period: 22 November 2005 (see Disease Information, 18 [47], 452, dated 25 November 2005).
End of this report period: 27 November 2005.
Identification of agent: avian influenza virus serotype H5.
Date of first confirmation of the event: 7 October 2005.
Date of start of the event: 4 October 2005.
Nature of diagnosis: clinical and laboratory.
Details of new outbreaks:
First administrative division (County) Lower administrative division (district) Name of the location Date of start of the outbreak Species Number of animals in the outbreaks susceptible cases deaths destroyed slaughtered Tulcea Caraorman Obretinul Mic lake 21 Nov. 2005 fau 1* Tulcea Sulina Musura bay, N-NE zone 21 Nov. 2005 fau 7** * water hen
** swans
Description of affected population in the new outbreaks: migratory birds found dead in the Danube Delta.
Diagnosis:
Laboratory where diagnostic tests were performed Samples examined Diagnostic tests used Date Results Institute for Diagnostics and Animal Health (national reference laboratory) swans: cloacal swabs, tracheal swabs, organs (trachea, lungs and brain) virus isolation in SPF(1) chicken embryos 21 Nov. 2005 positive Source of new outbreaks: unknown or inconclusive; contact with wild birds.
Control measures
A. Undertaken: screening.
B. To be undertaken: control of wildlife reservoirs.
Vaccination prohibited: no.
Other details/comments:
Continuing surveillance of the entire Danube Delta territory: all corpses and sick birds are collected and examined at the Tulcea Estate County Laboratory; those that are positive are sent for confirmation to the Institute for Diagnostics and Animal Health (national reference laboratory).
Final report: no.
(1) SPF: specific pathogen-free
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN ROMANIA
Follow-up report No. 10See also: 2 March 2006, 23 February 2006, 16 February 2006, 19 January 2006, 5 January 2006, 30 December 2005, 23 December 2005, 16 December 2005, 9 December 2005, 2 December 2005, 25 November 2005, 18 November 2005, 4 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 21 October 2005, 14 October 2005, 14 October 2005
Information received on 27 November and 1 December 2005 from Dr Gabriel Predoi, Director General, National Sanitary Veterinary and Food Safety Authority, Bucharest:
End of previous report period: 27 November 2005 (see Disease Information, 18 [48], 464, dated 2 December 2005).
End of this report period: 1 December 2005.
Identification of agent: avian influenza virus serotype H5.
Date of first confirmation of the event: 7 October 2005.
Date of start of the event: 4 October 2005.
Nature of diagnosis: clinical and laboratory.
New outbreaks:
First administrative division (County) Lower administrative division (district) Name of the location Date of start of the outbreak Species Number of animals in the outbreaks susceptible cases deaths destroyed slaughtered Braila Ciresu Scarlatesti 23 Nov. 2005 avi 184* 50 50 134 0 Tulcea Sulina Periprava 28 Nov. 2005 avi 49** 45 8 41 0 * 125 hens, 25 turkeys, 24 ducks and 10 geese
** 49 hens
Suspected outbreaks:
First administrative division (County) Lower administrative division (district) Name of the location Date of start of the suspected outbreak Species Number of animals in the suspected outbreaks susceptible cases deaths destroyed slaughtered Braila Dudesti Bumbacari avi 98 5 5 93 0 Braila Zavoaia Dudescu avi 150 33 33 117 0 Description of affected population: four backyard flocks.
Diagnosis:
Laboratory where diagnostic tests were performed Outbreak Samples examined Diagnostic tests used Date Results Institute for Diagnostics and Animal Health (national reference laboratory) Scarlatesti organs and head of turkey hen - rapid test for virus antigen detection;
- RT-PCR(1) for detection of specific viral genome (on primary pathological material);
- virus isolation in SPF(2) chicken embryos.
26 Nov. 2005 positive for highly pathogenic avian influenza virus serotype H5 Periprava 3 samples of organ fragments, 14 tracheal swabs and 20 cloacal swabs, all taken from 8 hens - rapid test for virus antigen detection (on tracheal and cloacal swabs);
- RT-PCR(1) for detection of specific viral genome (on tracheal and cloacal swabs);
- virus isolation in SPF(2) embryonated eggs.
1 Dec. 2005 positive for highly pathogenic avian influenza virus serotype H5
Laboratory where diagnostic tests were performed Outbreak (suspected) Samples examined Diagnostic tests used Date Results Institute for Diagnostics and Animal Health (national reference laboratory) Bumbacari 2 samples comprised of organ fragments, 10 cloacal swabs, taken from 2 hens - rapid test for virus antigen detection;
- RT-PCR(1) for detection of specific viral genome (on primary pathological material).
30 Nov. 2005 positive Dudescu 1 sample comprised of organs and 5 cloacal swabs taken from 1 hen;
1 sample comprised of organs and 5 cloacal swabs, taken from 1 chicken
- rapid test for virus antigen detection;
- RT-PCR(1) for detection of specific viral genome (on primary pathological material).
30 Nov. 2005 positive Origin of infection: contact with wild birds.
Control measures
A. Undertaken:
- affected villages placed under official control;
- stamping out applied to all birds within the affected villages (culling of poultry by gassing with CO2 in containers; destruction of corpses by burning and burying);
- quarantine (all transport of people, poultry, poultry products, feed, etc., is prohibited).
B. To be undertaken:
- restriction measures are being applied to the entire affected villages;
- disinfection of backyard premises and roads are being performed in the affected villages.
Vaccination prohibited: no.
Other details/comments:
- There are some small lakes in the immediate vicinity of the village of Scarlatesti. There are no other locality within a 3-km radius of Scarlatesti.
- The villages of Bumbacari and Dudescu are situated within the epidemiological surveillance zone around Scarlatesti.
- The village of Bumbacari has only 17 households and approximately 700 poultry.
- The entire poultry population in the village of Dudescu was 5,343 birds (4,097 hens and turkeys and 1,246 ducks and geese).
Final report: no.
(1) RT-PCR: reverse transcriptase - polymerase chain reaction
(2) SPF: specific pathogen-free
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* *NEWCASTLE DISEASE IN ROMANIA
Follow-up report No. 1See also: 21 December 2006, 2 November 2006, 15 June 2006, 6 April 2006, 9 March 2006, 23 February 2006, 2 February 2006, 19 January 2006, 5 January 2006, 30 December 2005, 16 December 2005, 9 December 2005, 25 November 2005
Information received on 28 and 30 November 2005 from Dr Gabriel Predoi, Director General, National Sanitary Veterinary and Food Safety Authority, Bucharest:
End of previous report period: 22 November 2005 (see Disease Information, 18 [47], 451, dated 25 November 2005).
End of this report period: 30 November 2005.
Date of first confirmation of the event: 14 October 2005.
Date of start of the event: 15 September 2005.
Nature of diagnosis: clinical, post-mortem and laboratory.
Details of new outbreaks:
First administrative division Lower administrative division Type of epidemiological unit Name of the location Date of start of the outbreak Species Number of animals in the outbreaks susceptible cases deaths destroyed slaughtered Bucharest City Bucharest village 1st district avi 1 1 0 0 Bucharest City Bucharest village 6th district 24 oct. 2005 avi 2 2 0 0 Ilfov County Balotesti village Balotesti avi 27 26 26 1 0 Ilfov County Darasti village Darasti 24 oct. 2005 avi 8 8 8 0 0 Tulcea County Grindu village Grindu avi 53 47 47 6 0 Tulcea County I.C. Bratianu village I.C. Bratianu 18 oct. 2005 avi 8 7 7 1 0 Tulcea County Ilganii-de-Sus village Ilganii-de-Sus 20 oct. 2005 avi 35 31 31 4 0 Tulcea County Jijia village Jijia avi 42 36 36 6 0 Tulcea County Niculitel village Niculitel 20 oct. 2005 avi 70 65 65 5 0 Vrancea County Dumbraveni village Dumbraveni 25 oct. 2005 avi 98 24 24 74 0 Description of affected populations in the new outbreaks:
- Outbreaks in Bucharest: two hens were found dead on waste land in the 6th district of Bucharest; the corpses were taken to the laboratory by a passer-by. Another hen was found dead on waste land in the 1st district.
- Outbreak in Dumbraveni, Vrancea County: domestic pigeons.
- Other outbreaks: hens in backyard premises.
Diagnosis:
Laboratory where diagnostic tests were performed Outbreak Samples examined Diagnostic test used Date Results Institute for Diagnostics and Animal Health (national reference laboratory) Bucharest (1st district) 1 cloacal swab taken from 1 hen corpse ICPI(1) 25 Oct. 2005 ICPI=1.62 Bucharest (6th district) 2 cloacal swabs taken from 2 hen corpses ICPI 24 Oct. 2005 ICPI=1.72 Ilfov (Balotesti) 2 cloacal swabs taken from 2 hen corpses ICPI 1 Nov. 2005 ICPI=1.66 Ilfov (Darasti) organs from 1 hen ICPI 24 Oct. 2005 ICPI=1.75 Tulcea (Grindu) 1 tracheal swab and brain sample taken from 1 hen corpse ICPI 1 Nov. 2005 ICPI=1.90 Tulcea (I.C. Bratianu) 1 tracheal swab, 4 cloacal swabs and organs taken from hens ICPI 19 Oct. 2005 ICPI=1.72 Tulcea (Ilganii-de-Sus) see I.C. Bratianu ICPI 21 Oct. 2005 ICPI=1.80 Tulcea (Niculitel) see I.C. Bratianu ICPI 21 Oct. 2005 ICPI=1.70 Tulcea (Jijia) 6 tracheal swabs and 6 brain samples taken from 6 hen corpses ICPI 1 Nov. 2005 ICPI=1.67 Vrancea (Dumbraveni) allanto-amniotic fluid sampled from 9-day-old embryonated eggs inoculated with aseptic homogenate of brain and organs taken from 5 pigeon corpses ICPI 25 Oct. 2005 ICPI=1.86 Source of new outbreaks: unknown or inconclusive (contact with wild birds?).
Control measures undertaken:
- quarantine;
- strict isolation of outbreaks in the infected backyard premises;
- destruction of all infected and exposed birds;
- cleaning and disinfection of premises;
- proper carcass disposal;
- screening;
- zoning;
- movement control inside the country;
- control of human movements.
Vaccination prohibited: no.
Final report: no.
(1) ICPI: intracerebral pathogenity index test
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* *AMERICAN FOULBROOD IN CHILE
Follow-up report No. 4See also: 30 March 2006, 2 March 2006, 26 January 2006, 12 January 2006, 23 December 2005, 16 December 2005, 9 December 2005, 25 November 2005, 18 November 2005, 4 November 2005, 28 October 2005
Translation of information received on 29 November 2005 from Dr Hernan Rojas Olavarria, Head, Department of Animal Protection, Department of Agriculture and Animal Production (SAG), Ministry of Agriculture, Santiago:
End of previous report period: 22 November 2005 (see Disease Information, 18 [47], 453, dated 25 November 2005).
End of this report period: 29 November 2005.
Precise identification of agent: Paenibacillus larvae subsp. larvae.
Date of first confirmation of the event: 20 October 2005.
Date of start of the event: 15 October 2005.
Nature of diagnosis: clinical and laboratory.
Details of new outbreaks:
First administrative division Lower administrative divisions Type of epidemiological unit Name of the location (sector) Latitude Longitude Date of start of the outbreak Species Number of animals* in the outbreaks susceptible cases destroyed V Region Valparaiso, Casablanca commune apiary Las Dichas 33 17'5.8991" S 71 29'39.1818" W 7 Nov. 2005 api 70 6 6 V Region Valparaiso, Villa Alemana commune apiary Villa Alemana 33 2'26.5279" S 71 18'50.1553" W 31 Oct. 2005 api 57 2 2 VI Region Cardenal Caro, Litueche commune apiary Pulín 34 8'24.1384" S 71 34'24.1470" W 5 Nov. 2005 api 147 3 3 * hives
Diagnosis:
Laboratory where diagnostic tests were performed Diagnostic tests used Date Results Department of Laboratories and Plant and Animal Quarantine Stations, Lo Aguirre, Santiago de Chile (official SAG laboratory) PCR(1) 15-18 Nov. 2005 positive Source of new outbreaks: contact with affected hives.
Control measures undertaken:
- quarantine;
- partial stamping out;
- movement control inside the country.
- zoning.
Final report: no.
(1) PCR: polymerase chain reaction
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN VIETNAM
Follow-up report No. 15 (covering the period from 1 October to 23 November 2005)See also: 21 December 2006, 21 September 2006, 31 August 2006, 23 February 2006, 26 January 2006, 26 January 2006
Information received on 29 November 2005 from Dr Bui Quang Anh, Director, Department of Animal Health, Ministry of Agriculture and Rural Development, Hanoi:
End of previous report period: 27 June 2005 (see Disease Information, 18 [26], 175, dated 1 July 2005).
Identification of agent: highly pathogenic avian influenza virus type H5N1.
Date of first confirmation of the event: 6 January 2004.
Nature of diagnosis: clinical, post-mortem and laboratory.
Details of new outbreaks during the period from 1 October to 23 November 2005: click here
Description of affected population in the new outbreaks: small village poultry (chickens and ducks).
Diagnosis:
Laboratory where diagnosis was made Diagnostic tests used Dates Results Regional Veterinary Centre, Ho Chi Minh City PCR(1) 4 Oct. 2005 positive National Veterinary Diagnosis Centre PCR(1), virus isolation 7, 23, 28 Oct. 2005 and 3, 5, 10, 17, 19 Nov. 2005 positive Source of outbreaks: unknown or inconclusive.
Control measures applied:
- stamping out;
- quarantine;
- movement control inside the country;
- disinfection of infected premises/establishments.
Vaccination prohibited: no.
Final report: no.
(1) PCR: polymerase chain reaction
Note by the OIE Animal Health Information Department: the Department of Animal Health of Vietnam has informed the OIE Central Bureau that it will soon be providing the OIE with a report on the highly pathogenic avian influenza situation in Vietnam for the period from 1 July to 30 September 2005.
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* *HIGHLY PATHOGENIC AVIAN INFLUENZA IN THAILAND
Follow-up report No. 78See 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, 25 November 2005, 18 November 2005, 4 November 2005, 28 October 2005, 21 October 2005, 14 October 2005, 7 October 2005, 30 September 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 2 December 2005 from Dr Yukol Limlamthong, Director General, Department of Livestock Development (DLD), Ministry of Agriculture and Cooperatives, Bangkok:
End of previous report period: 24 November 2005 (see Disease Information, 18 [47], 457, dated 25 November 2005).
End of this report period: 1 December 2005.
No new outbreaks of highly pathogenic avian influenza were reported during the week under report.
Final report: no.
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* *SCRAPIE IN THE FALKLAND ISLANDS/MALVINAS
(Disease never reported before in the Falkland Islands/Malvinas).
Immediate notification report
Information received on 29 November 2005 from Dr Debby Reynolds, Director General for Animal Health and Welfare, Department for Environment, Food and Rural Affairs (DEFRA), London:
Report date: 4 November 2005.
Reason for immediate notification: first occurrence of a listed disease or infection in a country or zone/compartment.
Date of first confirmation of the event: 1 November 2005.
Date of start of the event: 12 October 2005.
Clinical disease: yes.
Nature of diagnosis: clinical and laboratory.
Details of outbreak:
Name of the location Type of epidemiological unit Date of start of the outbreak Species Number of animals in the outbreak susceptible cases deaths destroyed slaughtered Cape Dolphin (East Falkland) farm 12 Oct. 2005 ovi 3,368* 1 0 1 0 bov 0 0 0 0 * as of 31 May 2005
Description of affected population: a 7-year-old ewe kept with other adult ewes in a ewe corp ready for lambing which starts in October 2005. All lambing occurs outside in lambing paddocks. The affected animal was homebred. The farm is a family farm of 4,705 hectares.
The sheep was discovered by the owner of the premises and a staff member of the Department of Agriculture while driving through the property. Whereas all the other sheep ran away from the vehicle, this animal stood still and appeared to be unaware of the vehicles presence. It was in very poor body condition and was constantly nibbling at its feet. It was imminently due to lamb but at post-mortem the lamb was poorly developed. Lungs were collapsed - looked like pneumonia.
Diagnosis: atypical case.
Laboratory where diagnostic tests were performed Species examined Diagnostic tests used Date Results Veterinary Laboratories Agency (VLA), Weybridge, United Kingdom (OIE Reference Laboratory for scrapie) ovi histopathology 1 Nov. 2005 negative immunostaining for PrP using VLA monoclonal antibody R145 at 1:500 1 Nov. 2005 positive Source of outbreak or origin of infection: unknown or inconclusive.
Final report: yes.
*
* *AVIAN INFLUENZA IN ZIMBABWE
Suspected outbreaksSee also: 23 February 2006, 9 December 2005
Immediate notification report
Information received on 30 November 2005 from Dr Stuart K. Hargreaves, Director of Veterinary Services, Ministry of Agriculture, Harare:
Report date: 28 November 2005.
Reason for immediate notification: first occurrence of a listed disease or infection in a country (depending on the results of pathogenicity tests).
Identification of agent: avian influenza virus serotype H5 (neuraminidase type is still to be determined).
Date of first confirmation of the event: 28 November 2005.
Date of start of the event: 28 November 2005.
Nature of diagnosis: laboratory.
Details of (suspected) outbreaks:
First administrative division (Province) Lower administrative division (District) Type of epidemiological unit Name of the location Latitude Longitude Species Number of animals in the (suspected) outbreaks susceptible cases deaths destroyed slaughtered Matebeleland North Umguza/Bubi farm Mimosa 19 55 S 28 25 E avi 10,000 farm Dollar Block 19 27 S 28 50 E avi 6,000 Description of affected population: slaughter ostriches.
Diagnosis:
Laboratory where diagnostic tests were performed Samples examined Diagnostic tests used Date Results Central Veterinary Laboratory, Harare ostrich sera haemagglutination inhibition test 28 Nov. 2005 32/150 positive Origin of infection: unknown or inconclusive.
Control measures undertaken:
- quarantine;
- movement control inside the country;
- screening.
Treatment of affected animals: no.
Vaccination prohibited: yes.
Note by the OIE Animal Health Information Department: highly pathogenic avian influenza has never been reported in Zimbabwe.
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* *NEWCASTLE DISEASE IN DENMARK
Follow-up report No. 2See also: 27 April 2006, 23 December 2005, 4 November 2005, 28 October 2005
Information received on 30 November 2005 from Dr Preben Willeberg, Chief Veterinary Officer, Danish Veterinary and Food Administration, Søborg:
End of previous report period: 4 November 2005 (see Disease Information, 18 [44], 417, dated 4 November 2005).
End of this report period: 30 November 2005.
Date of first confirmation of the event: 21 October 2005.
Date of start of the event: 14 October 2005.
There have been no new outbreaks of Newcastle disease since the outbreak that was reported in the immediate notification report on 21 October 2005.
The regional veterinary authorities visited and clinically inspected all poultry holdings (i.e. 2 commercial and 24 hobby holdings) within the protection zone around the Newcastle disease-affected holding without finding any clinical signs of Newcastle disease.
The protection zone was lifted as of 25 November 2005, 21 days after the approval of the preliminary cleaning and disinfection. The protection zone is now a part of the surveillance zone (the area marked with a blue borderline on the map).
In the surveillance zone the regional Veterinary Service has registered 3 commercial and 187 hobby holdings (in addition to the holdings in the protection zone).
The Danish Veterinary and Food Administration expects the surveillance zone to be lifted as of 4 December 2005.
Origin of infection: unknown or inconclusive.
Final report: no.
*
* *MISCELLANEOUS: AVIAN INFLUENZA IN CANADA (FOLLOW-UP REPORT NO. 1)
See also: 4 May 2006, 16 December 2005, 9 December 2005, 25 November 2005
Information received on 28 November 2005 from Dr Brian Evans, Executive Director, Canadian Food Inspection Agency, Ottawa:
End of previous report period: 20 November 2005 (see Disease Information, 18 [47], 458, dated 25 November 2005).
End of this report period: 28 November 2005.
Identification of agent: influenza virus type A, serotype H5N2, low pathogenic North American strain.
Date of first confirmation of the event: 18 November 2005.
Date of start of the event: 17 November 2005.
Clinical disease: no.
Nature of diagnosis: laboratory.
Screening of the owners four other commercial operations found a second operation, within the 5-km surveillance zone, to be positive, and three locations to be negative.
Details of outbreak (corrected information):
First administrative division (province) Lower administrative division (district) Type of epidemiological unit Species Number of animals in the outbreak susceptible cases deaths destroyed slaughtered British Columbia Chiliwack farm avi 55,800 Description of affected population (corrected information): meat ducks and geese.
Diagnosis:
Laboratories where diagnostic tests were performed Diagnostic tests used Date Results Provincial Agriculture - PCR(1) (matrix);
- real-time PCR;
- conventional PCR thermocycling (H5).
18 Nov. 2005 positive National Centre for Foreign Animal Disease (NCFAD), Winnipeg (H5)RT-PCR(2) on cloacal swab and allantoic fluids 20 Nov. 2005 positive for influenza virus type A serotype H5 RNA molecular analysis 20 Nov. 2005 low pathogenic North American sequence N type molecular diagnostic as well as conventional methods 25 Nov. 2005 serotype N2 haemagglutination and haemagglutination inhibition on allantoic fluids pending pending Source of outbreak or origin of infection: under investigation. Contact with migratory waterfowl cannot be excluded.
Control measures undertaken:
- Quarantine of the 'source farm' and the owners four other commercial operations.
- Quarantines imposed and movement controls on all the other 75 commercial units within the 5-km surveillance zone around the 'source farm'.
- Culling of birds in the 'source farm' (completed on 22 November 2005).
- Culling of birds in the second positive establishment (completed on 23 November 2005).
- Suspension of export certification from the 5-km zone is being maintained.
Vaccination prohibited: no.
Other details/comments:
Results of sampling conducted in the Province of British Columbia under a national migratory waterfowl sampling and surveillance programme for avian influenza has demonstrated the presence of H5N2 and H5N9 serotypes, all of which have been determined to be low pathogenic and consistent with historically reported North American strains with significant structural differences from the Asian strain of current international animal and human health concern.
Final report: no.
(1) PCR: polymerase chain reaction
(2) RT-PCR: reverse transcriptase - polymerase chain reaction
* Note by the OIE Animal Health Information Department: this disease is included in the new OIE list of diseases approved in May 2005 and due to come into force in January 2006.
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