Disease Information

23 March 2006
Vol. 19 - No. 12

Contents
Classical swine fever in Brazil: follow-up report No. 1
Avian influenza in Myanmar: follow-up report No. 1
Avian influenza in Israel
Avian influenza in Sweden
Foot and mouth disease in Turkey: in Thrace region (follow-up report No. 2)
Highly pathogenic avian influenza in Turkey: follow-up report No. 9
Newcastle disease in Japan: follow-up report No. 1
Avian influenza in Romania: follow-up report No. 22
Avian influenza in Afghanistan
Miscellaneous: Avian influenza in Sweden (in wildlife)
Miscellaneous: Highly pathogenic avian influenza in Hong Kong, Special Administrative Region of the People's Republic of China (in wildlife) (follow-up report No. 1) (final report)
Miscellaneous: Avian influenza in Poland (in wildlife) (follow-up report No. 2)
Miscellaneous: Avian influenza in Kazakhstan (in wildlife)
Miscellaneous: Avian influenza in Bosnia and Herzegovina (in wildlife) (follow-up report No. 1)

CLASSICAL SWINE FEVER IN BRAZIL
Follow-up report No. 1

See also: 22 June 2006, 8 June 2006, 1 June 2006, 25 May 2006, 27 April 2006, 13 April 2006, 6 April 2006, 9 March 2006

Translation of information received on 15 March 2006 from Dr Jorge Caetano Junior, Director, Department of Animal Protection (DDA), Ministry of Agriculture, Livestock and Food Supply, Brasilia:

End of previous report period: 7 March 2006 (see Disease Information, 19 [10], 201, dated 9 March 2006).

End of this report period: 15 March 2006.

Identification of agent: classical swine fever virus.

Date of first confirmation of the event: 6 March 2006.

Date of start of the event: 22 February 2006.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

Details of outbreak (updated data):

First administrative division (State)Lower administrative division (municipality)Type of epide-miolo-gical unitLatitudeLongitudeDate of start of the outbreakSpe-ciesNumber of animals in the outbreak
suscepti-blecasesdeathsdestroyedslaugh-tered
ParaíbaCuitegifarm6Ί53'49.4''S35Ί30'14.9''W22 Feb. 2006sui170*66491210

* A further 39 animals were born after the initial visit.

Affected population: small holding (rearing and breeding).

Source of outbreak or origin of infection: unknown or inconclusive.

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.

Other details/comments:

the ban in the affected area at Cuitegi is being maintained with the introduction of two monitoring posts;

a 10-km-radius security zone around the outbreak is being maintained, comprising an infected zone (3-km radius around the outbreak) and a surveillance zone (7-km radius around the infected zone);

continuous inspection of all the holdings in the security zone: to date, 111 holdings with a total of 1,128 pigs have been visited; to date, no other outbreaks have been notified;

actions for health education and information;

an epidemiological investigation is in progress.

Vaccination is still prohibited in the the entire country, including the area of the outbreak.

Final report: no.

*
* *

AVIAN INFLUENZA IN MYANMAR
Follow-up report No. 1

See also: 7 September 2006, 27 April 2006, 16 March 2006

Information received on 16 March 2006 from Dr U Maung Maung Nyunt, Director General, Livestock Breeding and Veterinary Department, Ministry of Livestock and Fisheries, Yangon:

End of previous report period: 12 March 2006 (see Disease Information, 19 [11], 223, dated 16 March 2006).

End of this report period: 16 March 2006.

Identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 12 March 2006.

Date of start of the event: 8 March 2006.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

New outbreaks:

First administrative division (division)Lower administrative division (district)Type of epide-miolo-gical unitName of the locationDate of start of the outbreakSpe-ciesNumber of animals in the outbreaks
susceptiblecasesdeathsdestroyedslaugh-tered
MandalayMandalayfarmPyigyidagun8 March 2006avi7841121126720
MandalayMandalayfarmPyigyidagun13 March 2006avi2,6004004002,2000
MandalayMandalayfarmPyigyidagun14 March 2006avi2,3002002002,1000
MandalayMandalayfarmAmarapura14 March 2006avi1,3002102101,2900
MandalayMandalayfarmPyigyidagun15 March 2006avi5,6001001005,5000
MandalayMandalayfarmPyigyidagun15 March 2006avi4,9003003004,6000
MandalayMandalayfarmPyigyidagun15 March 2006avi2,40050502,3500
SagoingShwebofarmKhinoo13 Feb. 2006avi15515551500

Affected populations: layers chickens and quail.

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults

- Regional Veterinary Diagnostic Laboratory, Mandalay

- Central Veterinary Diagnostic Laboratory, Yangon

avi

-- rapid test;

- PCR.

9-12 March 2006positive for H5N1

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- stamping out;

- zoning;

- disinfection of infected premises/establishment(s).

Treatment of affected animals: no.

Vaccination prohibited: yes.

Final report: no.

*
* *

AVIAN INFLUENZA IN ISRAEL

See also: 27 July 2006, 8 June 2006, 6 April 2006, 30 March 2006

(Date of previous outbreak of highly pathogenic avian influenza in Israel reported to the OIE: 1988).

Immediate notification report

Information received on 16, 17 and 18 March 2006 from Dr Moshe Chaimovitz, Director of Veterinary and Animal Health Services, Ministry of Agriculture and Rural Development, Beit-Dagan:

Report date: 18 March 2006.

Reason for immediate notification: re-occurrence of a listed disease or infection in a country following a report declaring the outbreak(s) ended.

Identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 16 March 2006.

Date of start of the event: 16 March 2006.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

Details of outbreaks:

First administrative division (region)Lower administrative division (district)Type of epide-miolo-gical unitName of the locationDate of start of the outbreakSpe-ciesNumber of animals in the outbreaks
susceptiblecasesdeathsdestroyedslaugh-tered
HaDaromBeer-ShevafarmEn Hashelosha16 March 2006avi12,0001,8001,80010,2000
HaDaromBeer-ShevafarmHolit16 March 2006avi30,0009,0009,00021,0000
HaDaromAshkelonvillageSede Moshe17 March 2006avi6,5005005006,0000
JesuralemJesuralemfarmNahshon17 March 2006avi20,00050050019,5000

Description of affected population: fattening turkeys 16 weeks old.

Diagnosis:

Laboratory where diagnostic tests were performedLocation of the outbreak(s)Species examinedDiagnostic tests usedDateResults
Kimron Veterinary Institute, Beit DaganEn Hashelosha, Holit and Sede MosheturkeyPCR(1) (H5)16 March 2006positive
PCR (H5N1)17 and 18 March 2006positive
virus isolation18 March 2006positive
haemagglutination test (HA)18 March 2006positive
haemagglutination inhibition test (HI)18 March 2006positive
PCR (H5)18 March 2006positive
PCR (N1)18 March 2006pending
NahshonturkeyPCR (H5N1)18 March 2006positive

- virus isolation;

- HI.

18 March 2006pending

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- stamping out (all birds in the affected flocks have been destroyed and buried);

- quarantine;

- movement restrictions enforced within a 3-km-radius around the outbreaks;

- screening;

- zoning.

Treatment of affected animals: no.

Other details/comments: epidemiological surveys are underway in a 10-km-radius zone around the outbreaks.

Final report: no.

(1) PCR: polymerase chain reaction

*
* *

AVIAN INFLUENZA IN SWEDEN

See also: 17 August 2006

(Highly pathogenic avian influenza has never been reported before in Sweden).

Immediate notification report

Information received on 20 March 2006 from Dr Leif Denneberg, Chief Veterinary Officer, Swedish Board of Agriculture, Jönköping:

Report date: 20 March 2006.

Reason for immediate notification: first occurrence of a listed disease or infection in a country or zone/compartment.

Identification of agent: highly pathogenic avian influenza (HPAI) virus subtype H5.

Date of first confirmation of the event: 17 March 2006.

Date of start of the event: 24 February 2006.

Clinical disease: no.

Nature of diagnosis: laboratory.

Details of outbreak:

First administrative division (county)Lower administrative divisionType of epide-miolo-gical unitName of the locationDate of start of the outbreakSpe-ciesNumber of animals in the outbreak
susceptiblecasesdeathsdestroyedslaugh-tered
Kalmar
(county No. 8)
OskarshamnfarmGässhult24 Feb. 2006avi692106920

Description of affected population: in a holding (fenced area) which included game birds (500 farmed mallards [Anas platyrhynchos]), 150 pheasants, 30 pigeons, 10 backyard hens and 2 peafowls, 50 samples were taken from mallards and pheasants. HPAI virus subtype H5 was found in one mallard.

Diagnosis:

Laboratory where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
National Veterinary Institute, Uppsalamallard

- PCR(1);

- sequence analysis.

17 March 2006

- positive H5

- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile

Source of outbreak or origin of infection: contact with wild birds.

Control measures undertaken:

- control of wildlife reservoirs;

- stamping out;

- movement control inside the country;

- screening;

- zoning;

- disinfection of infected premises/establishment(s).

Treatment of affected animals: no.

Vaccination prohibited: yes.

Other details/comments:

- There are no commercial poultry in the area.

- The holding was placed under supervision on 24 March 2006, since it is located within the surveillance zone already implemented due to findings in wild birds.

- All birds were clinically healthy at the time of sampling and there is no high mortality among wild birds noted in the area.

- Samples were sent to OIE Reference Laboratory for avian influenza, Veterinary Laboratories Agency (VLA), Weybridge, United Kingdom, for confirmation.

Final report: no.

(1) PCR: polymerase chain reaction

*
* *

FOOT AND MOUTH DISEASE IN TURKEY
in Thrace region (Follow-up report No. 2)

See also: 5 October 2006, 13 July 2006, 22 June 2006, 6 April 2006, 2 March 2006, 9 February 2006

Information received on 17 March from Dr Hüseyin Sungur, Director General, General Directorate of Protection and Control, Ministry of Agriculture and Rural Affairs, Ankara:

End of previous report period: 23 February 2006 (see Disease Information, 19 [9], 166, dated 2 March 2006).

End of this report period: 17 March 2006.

Identification of agent: foot and mouth disease virus type A.

Date of first confirmation of the event: 1 February 2006.

Date of start of the event: 21 January 2006.

Details of outbreaks: see Disease Information, 19 [9], 166, dated 2 March 2006.

Other details/comments:

- Within the framework of the spring vaccination campaigns, a total of 234,054 large animals and 108,497 small animals were vaccinated in Thrace region (Kirklareli, Edirne, Canakkale, Istanbul and Tekirdag provinces).

- As of 16 March 2006, the outbreaks in Kirklareli-Urunlu, Kirklareli-Kayali and Kirklareli-Kavakdere were considered to have ended; as of 15 March 2006, the outbreaks in Kirklareli-Seyitler and Kirklareli-Karamusul were considered to have ended.

Final report: no.

*
* *

HIGHLY PATHOGENIC AVIAN INFLUENZA IN TURKEY
Follow-up report No. 9

See also: 17 August 2006, 18 May 2006, 11 May 2006, 27 April 2006, 20 April 2006, 13 April 2006, 6 April 2006, 30 March 2006, 9 March 2006, 2 March 2006, 2 March 2006, 23 February 2006, 2 February 2006, 26 January 2006, 19 January 2006, 12 January 2006, 30 December 2005, 9 December 2005, 18 November 2005, 28 October 2005, 14 October 2005, 14 October 2005

Information received on 16 March 2006 from Dr Hüseyin Sungur, Director General, General Directorate of Protection and Control, Ministry of Agriculture and Rural Affairs, Ankara:

End of previous report period: 7 March 2006 (see Disease Information, 19 [10], 203, dated 9 March 2006).

End of this report period: 16 March 2006.

Precise identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 26 December 2005.

Date of start of the event: 15 December 2005.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

New outbreaks:

First administrative division (province)Lower administrative divisionType of epide-miolo-gical unitName of the locationDate of start of the outbreakSpeciesNumber of animals in the outbreak
suscep
tible
casesdeathsdes-
troyed
slaugh-tered
BatmanMerkezvillageAkca Koyu18 Jan 2006avi2,18320202,1630
ElazigKebanvillageDenizli Koyu26 Jan 2006avi8411830
IstanbulBuyukcekmecevillage19 Mayis3 March 2006avi1,641661,6350
KayseriTalasvillageCebir Koyu6 March 2006avi……………
KirsehirKamanvillageCadirli Kor Mehmet3 March 2006avi1,46324241,4390
KocaeliKandiravillageGoncaaydin Koyu5 March 2006avi1,6841491491,5350
MardinMerkezvillageIstasyon mah16 Jan 2006avi……………
SiirtKurtalanvillageGurgoze Koyu24 Feb 2006avi……………
TokatZilevillageK.Karayun Koyu6 Jan 2006avi1,466441,4620
TokatZilevillageKirlar Koyu6 Jan 2006avi79922797…

Description of affected population: to date, only one outbreak, in Elazig province, has occurred in a small-scale commercial broiler poultry flock. All the other outbreaks have occurred in backyard (village) poultry flocks.

Diagnosis:

OutbreakLaboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
BatmanBornova Veterinary Control and Research Instituteturkeyhaemagglutination inhibition9 March 2006positive for H5
ElazigCentral Veterinary Control and Research InstitutechickenRT-PCR(1)13 March 2006positive for H5N1
IstanbulPendik Veterinary Control and Research InstitutechickenRT-PCR(1)8 March 2006positive for H5N1
KayseriCentral Veterinary Control and Research Institutechickenhaemagglutination inhibition13 March 2006positive for H5
KirsehirCentral Veterinary Control and Research Institutechickenhaemagglutination inhibition10 March 2006positive for H5
KocaeliPendik Veterinary Control and Research InstitutechickenRT-PCR(1)7 March 2006positive for H5N1
MardinBornova Veterinary Control and Research InstitutechickenRT-PCR(1)9 March 2006positive for H5N1
SiirtCentral Veterinary Control and Research Institutechickenhaemagglutination inhibition7 March 2006positive for H5
TokatCentral Veterinary Control and Research Institutechickenhaemagglutination inhibition9 Feb 2006positive for H5
TokatCentral Veterinary Control and Research Institutechickenhaemagglutination inhibition9 Feb 2006positive for H5

Source of outbreaks or origin of infection: contact with infected animal(s) at grazing/watering and contact with wild animals.

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) RT-PCR: reverse transcriptase - polymerase chain reaction

*
* *

NEWCASTLE DISEASE IN JAPAN
Follow-up report No. 1

See also: 11 May 2006, 9 March 2006, 9 December 2005

Information received on 17 March 2006 from Dr Hirofumi Kugita, Chief Veterinary Officer, Ministry of Agriculture, Forestry and Fisheries, Tokyo:

End of previous report period: 6 March 2006 (see Disease Information, 19 [10], 198, dated 9 March 2006).

End of this report period: 17 March 2006.

Date of first confirmation of the event: 4 March 2006.

Date of start of the event: 2 March 2006.

Identification of agent: Newcastle disease virus.

Clinical disease: yes.

Nature of diagnosis: clinical and laboratory.

New outbreak:

First administrative division (prefecture)Lower administrative divisions (county)Type of epide-miolo-gical unitName of the locationDate of start of the outbreakSpeciesNumber of animals in the outbreak
susceptiblecasesdeathsdestroyedslaugh-tered
FukuokaYamatofarmYamakawa town14 March 2006avi…44743729,6520

Description of affected population:

The affected population (chickens) showed clinical signs, such as depression and increased mortality.

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
Chikugo Livestock Hygiene Service Centeravivirus isolation17 March 2006positive

Source of outbreak or origin of infection: unknown or inconclusive.

Control measures undertaken:

- movement control inside the country;

- vaccination;

- disinfection of infected establishment.

Control measures to be undertaken:

- modified stamping out.

Treatment of affected animals: no.

Vaccination prohibited: no.

Other details:

On-site investigations have been made in commercial farms within a 5-km radius of the infected farms. Vaccination against Newcastle disease is also recommended to poultry farms in the same prefecture.

Final report: no.

*
* *

AVIAN INFLUENZA IN ROMANIA
Follow-up report No. 22

See also: 21 December 2006, 15 June 2006, 8 June 2006, 25 May 2006, 18 May 2006, 4 May 2006, 30 March 2006, 16 March 2006, 9 March 2006

Information received on 17 March 2006 from Dr Gabriel Predoi, Director General, National Sanitary Veterinary and Food Safety Authority, Bucharest:

End of previous report period: 14 March 2006 (see Disease Information, 19 [11], 219, dated 16 March 2006).

End of this report period: 17 March 2006.

Identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 7 October 2005.

Date of start of the event: October 2005.

Nature of diagnosis: clinical and laboratory.

New outbreaks:

First administrative division (county)Lower administrative division (district)Name of the location (village)Date of start of the outbreakSpeciesNumber of animals in the outbreaks
suscepti-blecasesdeathsdestroyedslaugh-tered
TulceaSamovaSamova13 March 2006fau…1100
TulceaValea NucarilorValea Nucarilor13 March 2006avi16162140

Description of affected populations:

- Outbreak in Samova: coot (Fulica atra)

- Outbreak in Valea Nucarilor: hens in a backyard premises, in the Danube Delta area.

Diagnosis:

Laboratory where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
Institute for Diagnostic and Animal health (national reference laboratory)hens and coot

- rapid detection test;

- RT-PCR(1);

- virus isolation.

16 March 2006positive

Source of outbreaks: contact with infected animal(s) at grazing/watering; contact with wild animals.

Control measures

A. Undertaken:

- stamping out;

- quarantine;

- movement control inside the country;

- screening;

- zoning;

- disinfection of infected premises/establishments.

B. To be undertaken:

- control of wildlife reservoirs.

Treatment of affected animals: no.

Vaccination prohibited: no.

Final report: no.

(1) RT-PCR: reverse transcriptase - polymerase chain reaction

*
* *

AVIAN INFLUENZA IN AFGHANISTAN

(Date of previous outbreak of highly pathogenic avian influenza in Afghanistan reported to the OIE: 2002).

Immediate notification report

Information received on 20 March 2006 from Dr Azizullah Osmani, General President of Animal Husbandry and Veterinary Services, Ministry of Agriculture, Animal Husbandry and Food, Kabul:

Report date: 20 March 2006.

Reason for immediate notification: re-occurrence of a listed disease or infection in a country.

Identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 15 March 2006.

Date of start of the event: 2 March 2006.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

Details of outbreaks:

First administrative division (province)Name of the location (village)Date of start of the outbreakSpe-ciesNumber of animals in the outbreaks
susceptiblecasesdeathsdestroyedslaugh-tered
JalalabadCenter2 March 2006avi…44……
KabulQasaba6 March 2006avi…1………
JalalabadKhoiani6 March 2006avi…22……
KabulDasht-e-Barchi9 March 2006avi…88……
KabulCharqala12 March 2006avi……………
JalalabadCenter12 March 2006avi……………
JalalabadWazir12 March 2006avi……………
KabulDasht-e-Barchi12 March 2006avi…32……
KabulCenter13 March 2006avi……………
LaghmanHaidary13 March 2006avi…64……
VardakNerkh15 March 2006avi……………
KabulCenter18 March 2006avi……………
KunarTisha19 March 2006fau…1100

Description of affected population: chicken, turkeys and a crow.

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
Central diagnostic laboratory, KabulaviELISA…positive
OIE/FAO Reference Laboratory for avian influenza and Newcastle disease, Padova, Italyavi

- PCR (genes M, H5 and N1);

- sequence analysis.

15 March 2006

- positive for H5N1

- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- quarantine;

- movement control inside the country;

- disinfection of infected premises/establishment(s).

Treatment of affected animals: no.

Final report: no.

*
* *

MISCELLANEOUS: AVIAN INFLUENZA IN SWEDEN (IN WILDLIFE)

Immediate notification report

Information received on 16 March 2006 from Dr Leif Denneberg, Chief Veterinary Officer, Swedish Board of Agriculture, Jönköping:

Report date: 16 March 2006.

Date of first confirmation of the event: 15 March 2006.

Date of start of the event: 24 February 2006.

Identification of agent: avian influenza virus subtype H5N1.

Clinical disease: yes.

Nature of diagnosis: clinical and laboratory.

Details of outbreaks:

First administrative division (county)Type of epidemiolo-gical unitName of the locationDate of start of the outbreakSpeciesNumber of animals in the outbreaks
susceptiblecasesdeathsdestroyedslaugh-tered
KalmarNA*Oskarshamn24 Feb. 2006fau…2200
BlekingeNAKarlskrona3 March 2006fau…1100
SödermanlandNAOxelösund6 March 2006fau…3300
GotlandNAGotland7 March 2006fau…2200
GotlandNAFårö Gotland15 March 2006fau…6600

* NA: not applicable

Description of affected population:

- Oskarshamn: 2 tufted ducks (Aythya fuligula)

- Oxelösund: 3 tufted ducks (Aythya fuligula)

- Karlskrona: 1 greater scaup (Aythya marila)

- Gotland: 2 tufted ducks (Aythya fuligula)

- Fårö Gotland: 5 tufted ducks (Aythya fuligula) and 1 greater scaup (Aythya marila)

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
National Veterinary Institute, Uppsalafau

- PCR (H5 and M genes)

- sequence analysis

24 Feb 2006

- positive

- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile

OIE Reference Laboratory, Veterinary Laboratories Agency, Weybridge, United Kingdomfauvirus isolation and N-typing15 March 2006positive for HPAI H5N1 virus

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- movement control inside the country;

- screening;

- zoning.

Treatment of affected animals: no.

Vaccination prohibited: yes.

Other details:

- A total of 243 dead wild birds from the aforementioned areas were analysed between 10 February and 15 March 2006. Thirty-six were positive for HPAI subtype H5.

- No high mortality among wild birds has been noted. It is late in the season and temperatures are below freezing, so some dead birds are to be expected at this time of the year.

Final report: no.

*
* *

MISCELLANEOUS: HIGHLY PATHOGENIC AVIAN INFLUENZA IN HONG KONG, SPECIAL ADMINISTRATIVE REGION OF THE PEOPLE'S REPUBLIC OF CHINA (IN WILDLIFE) (Follow-up report No. 1) (Final report)

See also: 26 January 2006

Information received on 20 March 2006 from the Director of the Agriculture, Fisheries and Conservation Department (AFCD), Hong Kong:

End of previous report period: 20 January 2006 (see Disease Information, 19 [4], 72, dated 26 January 2006).

End of this report period: 20 March 2006.

Identification of agent: avian influenza virus subtype H5N1.

Date of first confirmation of the event: 10 January 2006.

Date of start of the event: 4 - 8 January 2006.

Clinical disease: yes

Nature of diagnosis: laboratory.

Details of outbreaks:

Name of the locationType of epidemio-logical unitDate of start of the eventSpeciesNumber of animals in the outbreaks
suscep-tiblecasesdeathsdestro-yedslaugh-tered
Tai PoNA*10 Jan 2006Oriental magpie robin (Copsychus saularis)…1100
Sha Tau KokNA26 Jan 2006Oriental magpie robin (Copsychus saularis)…1100
Wong Tai SinNA31 Jan 2006crested myna (Acridotheres cristatellus)…1100
Sha Tau KokNA31 Jan 2006chicken** (Gallus domesticus)…1100
Sham TsengNA3 Feb 2006common magpie (Pica pica sericea)…1100
Tuen MunNA3 Feb 2006little egret (Egretta garzetta)…1100
Tuen MunNA6 Feb 2006chicken** (Gallus domesticus)…1100
Mong KokNA7 Feb 2006Japanese white-eye (Zosterops japonica simplex)…1100
Sham Shui PoNA16 Feb 2006common magpie (Pica pica sericea)…1100
Mong KokNA17 Feb 2006common magpie (Pica pica sericea)…1100
Repulse BayNA20 Feb 2006munia (Lonchura spp.)…1100
Wan ChaiNA20 Feb 2006white-rumped munia Lonchura striata)…1100
Sham Shui PoNA20 Feb 2006large-billed crow (Corvus macrorhynchus)…11 0
Cheung Sha WanNA21 Feb 2006house crow (Corvus splendens)…1100
Shek Kip MeiNA23 Feb 2006house crow (Corvus splendens)…1100
Shouson HillNA25 Feb 2006common magpie (Pica pica sericea)…1100

* NA: not applicable. ** chicken (see below)

During the recent enhanced local dead wild bird surveillance exercise (in progress since October 2005), during which all dead birds found in Hong Kong are being collected and submitted for avian influenza testing, 2 dead chickens from different locations were also collected and submitted. These chickens were not found in a poultry farm or live poultry markets.

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
Tai Lung Veterinary Laboratory, Agriculture, Fisheries and Conservation Department, Hong Kongfau

- HA

- real time RT-PCR (H5 gene)

…

- positive

- positive

Department of Microbiology,University of Hong Kongfau

- RT-PCR (N1 gene)

- sequence analysis

10 Jan - 6 Feb 2006

- positive
- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile

The H5-HA genes of these viruses have the highest homology ((99%) to each other’s HA1 gene and high homology (98%) to that of A/Dk/Hunan/5806/03[H5N1].

Phylogenetic analysis showed that these viruses all belong to H5N1 genotype V, which has previously been recorded in southern China, Japan and South Korea.

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- movement control inside the country;

- screening.

Treatment of affected animals: no.

Vaccination prohibited: no.

Other details:

The intensive avian influenza surveillance system in Hong Kong showed no outbreaks of H5N1 infection in local poultry farms and live poultry markets.

From 2005 to the end of February 2006, over 11,400 faecal or cloacal/tracheal swabs from local poultry farms, 15,300 from wholesale or retail live poultry markets, 3,200 from waterfowl and aviaries in recreational parks, 3,500 from pet bird shops and markets and 13,700 from wild birds were tested in Hong Kong as part of the avian influenza surveillance programme.

There have been no reports of unusual mortality in wild birds.

All chicken farms are routinely vaccinated with inactivated H5N2 vaccine and each batch of chickens has 60 unvaccinated individually identified sentinels, which are monitored over the production life of the batch.

Final report: yes.

*
* *

MISCELLANEOUS: AVIAN INFLUENZA IN POLAND (IN WILDLIFE) (Follow-up report No. 2)

See also: 8 June 2006, 11 May 2006, 20 April 2006, 13 April 2006, 6 April 2006, 16 March 2006, 9 March 2006

Information received on 20 March 2006 from Dr Krzysztof Jazdzewski, Chief Veterinary Officer, General Veterinary Inspectorate, Warsaw:

End of previous report period: 13 March 2006 (see Disease Information, 19 [11], 231, dated 16 March 2006).

End of this report period: 20 March 2006.

Identification of agent: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 6 March 2006.

Date of start of the event: 2 March 2006.

Clinical disease: yes.

Nature of diagnosis: clinical and laboratory.

New outbreaks:

First administrative division Lower administrative division Type of epide-miolo-gical unitName of the locationDate of start of the outbreakSpe-ciesNumber of animals in the outbreaks
susceptiblecasesdeathsdestroyedslaugh-tered
BydgoskiBydgoszczNA*Bydgoszcz8 March 2006fau...1100
BydgoskiBydgoszczNA*Bydgoszcz14 March 2006fau...1100

* NA: not applicable

Description of affected population: wild swans.

Diagnosis:

Laboratory where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
National Veterinary Research Institute, Pulawywild swans

- RT-PCR(1) (H5)

- RT-PCR (N1)

- virus isolation

- RT-PCR(1) (H5)- RT-PCR (N1)- virus isolation

11-17 March 2006positive

Source of outbreaks or origin of infection: unknown or inconclusive.

Control measures undertaken:

- movement control inside the country;

- screening;

- zoning;

- dipping/spraying.

Treatment of affected animals: no.

Vaccination prohibited: yes.

Final report: no.

(1) RT-PCR: reverse transcriptase - polymerase chain reaction

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MISCELLANEOUS: AVIAN INFLUENZA IN KAZAKHSTAN (IN WILDLIFE)

(Date of previous outbreak of highly pathogenic avian influenza in Kazakhstan reported to the OIE: July 2005).

Immediate notification report

Translation of information received on 21 March 2006 from Dr Asilbek A. Kozhumratov, Director, Veterinary Control Department, Ministry of Agriculture, Astana:

Report date: 21 March 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: highly pathogenic avian influenza virus subtype H5N1.

Date of first confirmation of the event: 17 March 2006.

Date of start of the event: 10 March 2006.

Clinical disease: no.

Nature of diagnosis: laboratory.

Details of outbreak:

First administrative division (region)Lower administrative divisionType of epide-miolo-gical unitName of the locationDate of start of the outbreakSpe-ciesNumber of animals in the outbreak
susceptiblecasesdeathsdestroyedslaugh-tered
MangghystauAktauNACape Peschannyi10 March 2006fau…33……

* NA: not applicable

Description of affected population: wild swans.

Diagnosis:

Laboratories where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
National Centre of monitoring, reference, laboratory diagnostics and methodology in veterinary medicine, National University, Astanawild swans

- PCR(1);

- haemagglutination test.

17 March 2006positive for H5
Scientific Research Institute for Agriculture, Otarwild swans- rapid test.17 March 2006positive for H5N1
Institute for Microbiology and Virology, Almatywild swans

- virus isolation;

- PCR;

- sequence analysis.

17 March 2006

- positive for H5N1 ;

- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile.

Treatment of affected animals: no.

Other details/comments: vaccination of domestic birds against highly pathogenic avian influenza has begun in Mangghystau and Atyrau regions.

Final report: no.

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MISCELLANEOUS: AVIAN INFLUENZA IN BOSNIA AND HERZEGOVINA (IN WILDLIFE) (Follow-up report No. 1)

See also: 23 February 2006

Information received on 22 March 2006 from Dr Jozo Bagaric, Head of the State Veterinary Administration of Bosnia and Herzegovina, Sarajevo:

End of previous report period: 20 February 2006 (see Disease Information, 19 [8], 147, dated 23 February 2006).

End of this report period: 22 March 2006.

Precise identification of agent: avian influenza virus subtype H5N1.

Date of first confirmation of the event: 20 February 2006.

Date of start of the event: 16 February 2006.

Clinical disease: yes.

Nature of diagnosis: clinical, post-mortem and laboratory.

Details of outbreak (reminder):

First administrative division (canton)Lower administra-tive division (municipality)Type of epide-miolo-gical unitName of the locationLatitudeLongitudeDate of start of the outbreakSpe-ciesNumber of animals in the outbreak
susceptiblecasesdeathsdes-troyedslaugh-tered
SrednjobosanskiJajceNA*Plivsko lake44.34694Ί N17.18855Ί E16 Feb. 2006fauapprox. 15020150

* NA: not applicable

Diagnosis:

Laboratory where diagnostic tests were performedSpecies examinedDiagnostic tests usedDateResults
OIE Reference Laboratory, Veterinary Laboratories Agency (VLA), Weybridge, United Kingdomswans

- virus isolation;

- sequence analysis.

25 Feb. 2006

- positive for H5N1;

- amino acid sequence at cleavage site indicates a highly pathogenic avian influenza profile

Control measures undertaken:

- by 22 February 2006, all 2,872 domestic poultry present within a 3-km radius around Plivsko Lake, where the positive swans were found, were killed and disposed in a safe manner;

- control of wildlife reservoirs;

- quarantine;

- movement control inside the country;

- screening;

- zoning;

- disinfection of infected premises/establishment(s);

- dipping/spraying.

Other details/comments:

- During the period from 2 to 5 March 2006, intensive sampling was carried out in the surveillance zone (10-km radius around Plivsko lake), during which 1,214 samples were obtained from the domestic poultry population (blood samples and cloacal swabs); all the samples gave negative results.

- There have been no new cases, and all animals tested in surveillance zone have given negative results.

- From 22 March 2006, all the protection measures applied in the area of the outbreak will be lifted.

Final report: no.

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