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Highly pathogenic avian influenza, Vietnam (OIE, March 30 2011, edited): Eight new H5N1 poultry outbreaks

Giuseppe

Giuseppe

Emeritus
Highly pathogenic avian influenza, Vietnam (OIE, March 30 2011, edited)


[Source: OIE, full page: (LINK). Extract, edited.]

Highly pathogenic avian influenza, Vietnam

Information received on 30/03/2011 from Dr Nam Hoang Van, Director General, Department of Animal Health, Ministry of Agriculture and Rural Development , Hanoi, Vietnam

  • Summary
    • Report type Follow-up report No. 48
    • Start date 07/12/2006
    • Date of first confirmation of the event 19/12/2006
    • Report date 30/03/2011
    • Date submitted to OIE 30/03/2011
    • Reason for notification Reoccurrence of a listed disease
    • Date of previous occurrence 10/08/2006
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H5N1
    • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced)
    • This event pertains to a defined zone within the country
    • Related reports
      • Immediate notification (19/12/2006)
      • Follow-up report No. 1 (04/01/2007)
      • Follow-up report No. 2 (17/01/2007)
      • Follow-up report No. 3 (27/02/2007)
      • Follow-up report No. 4 (23/03/2007)
      • Follow-up report No. 5 (02/04/2007)
      • Follow-up report No. 6 (17/05/2007)
      • Follow-up report No. 7 (24/05/2007)
      • Follow-up report No. 8 (07/06/2007)
      • Follow-up report No. 9 (05/07/2007)
      • Follow-up report No. 10 (14/09/2007)
      • Follow-up report No. 11 (11/10/2007)
      • Follow-up report No. 12 (31/10/2007)
      • Follow-up report No. 13 (12/11/2007)
      • Follow-up report No. 14 (07/01/2008)
      • Follow-up report No. 15 (01/02/2008)
      • Follow-up report No. 16 (23/02/2008)
      • Follow-up report No. 17 (12/03/2008)
      • Follow-up report No. 18 (01/04/2008)
      • Follow-up report No. 19 (23/04/2008)
      • Follow-up report No. 20 (14/07/2008)
      • Follow-up report No. 21 (30/09/2008)
      • Follow-up report No. 22 (27/11/2008)
      • Follow-up report No. 23 (30/12/2008)
      • Follow-up report No. 24 (07/01/2009)
      • Follow-up report No. 25 (03/02/2009)
      • Follow-up report No. 26 (06/02/2009)
      • Follow-up report No. 27 (16/02/2009)
      • Follow-up report No. 28 (22/02/2009)
      • Follow-up report No. 29 (06/03/2009)
      • Follow-up report No. 30 (10/04/2009)
      • Follow-up report No. 31 (21/05/2009)
      • Follow-up report No. 32 (26/06/2009)
      • Follow-up report No. 33 (05/11/2009)
      • Follow-up report No. 34 (13/12/2009)
      • Follow-up report No. 35 (16/12/2009)
      • Follow-up report No. 36 (27/12/2009)
      • Follow-up report No. 37 (24/01/2010)
      • Follow-up report No. 38 (28/01/2010)
      • Follow-up report No. 39 (13/02/2010)
      • Follow-up report No. 40 (03/03/2010)
      • Follow-up report No. 41 (24/03/2010)
      • Follow-up report No. 42 (10/04/2010)
      • Follow-up report No. 43 (29/04/2010)
      • Follow-up report No. 44 (17/08/2010)
      • Follow-up report No. 45 (04/12/2010)
      • Follow-up report No. 46 (23/02/2011)
      • Follow-up report No. 47 (08/03/2011)
      • Follow-up report No. 48 (30/03/2011)

  • New outbreaks
    • Outbreak 1 - Dong, Son Tinh, Tinh Son, QUANG NGAI
      • Date of start of the outbreak 02/03/2011
      • Outbreak status Resolved (23/03/2011)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 3316 - 210 - 150 - 60 - 0
    • Outbreak 2 - Nghia An, Nghia An, Nam Truc, NAM DINH
      • Date of start of the outbreak 16/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 2671 - 1250 - 850 - 1821 - 0
        • Affected Population Affected animals were unvaccinated ducks of about 2 months old.
    • Outbreak 3 - Tinh Phong, Tinh Phong, Son Tinh, QUANG NGAI
      • Date of start of the outbreak 17/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 1000 - 547 - 447 - 453 - 0
    • Outbreak 4 - 13, Nghi Duc, Vinh city, NGHE AN
      • Date of start of the outbreak 02/03/2011
      • Outbreak status Resolved (23/03/2011)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 398 - 398 - 200 - 198 - 0
    • Outbreak 5 - Quang Huy, Phuoc Loc, Tuy Phuoc, BINH DINH
      • Date of start of the outbreak 04/03/2011
      • Outbreak status Resolved (25/03/2011)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 2000 - 1550 - 1000 - 550 - 0
    • Outbreak 6 - Hoi Yen, Hai Que, Hai Lang, QUANG TRI
      • Date of start of the outbreak 10/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 2000 - 1500 - 1000 - 1000 - 0
    • Outbreak 7 - Nghia An, Nghia An, Nam Truc, NAM DINH
      • Date of start of the outbreak 16/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 2671 - 2000 - 1000 - 1671 - 0
    • Outbreak 8 - Tu Son, Tu Son, Kien Thuy, Hai Phong
      • Date of start of the outbreak 17/03/2011
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Village
      • Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 887 - 887 - 500 - 387 - 0

  • Summary of outbreaks
    • Total outbreaks: 8
    • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
      • Birds - 14943 - 8342 - 5147 - 6140 - 0
    • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
      • Birds - 55.83% - 34.44% - 61.70% - 75.53%
      • * Removed from the susceptible population through death, destruction and/or slaughter

  • Epidemiology
    • Source of the outbreak(s) or origin of infection
      • Introduction of new live animals
      • Illegal movement of animals
      • Fomites (humans, vehicles, feed, etc.)

  • Control measures
    • Measures applied
      • Quarantine
      • Movement control inside the country
      • Disinfection of infected premises/establishment(s)
      • Modified stamping out
      • No vaccination
      • No treatment of affected animals
    • Measures to be applied
      • Screening
      • Zoning
      • Vaccination in response to the outbreak (s)

  • Diagnostic test results
    • Laboratory name and type National Center for Veterinary Diagnosis (NCVD) (National laboratory)
      • Tests and results: Species - Test - Test date - Result
        • Birds - real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) - 18/03/2011 - Positive

  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.
(...)
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