Highly pathogenic avian influenza, Myanmar (OIE, Jan 18 2011, edited): Immediate Notification Report

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Highly pathogenic avian influenza, Myanmar (OIE, Jan 18 2011, edited)


[Source: OIE, full text: (LINK). Edited.]

Highly pathogenic avian influenza, Myanmar

Information received on 18/01/2011 from Prof. Dr Myint Thein , Director General, Livestock Breeding and Veterinary Department , Ministry of Livestock & Fisheries , YANGOON , Myanmar

• Summary
  • Report type Immediate notification
  • Start date 06/01/2011
  • Date of first confirmation of the event 16/01/2011
  • Report date 18/01/2011
  • Date submitted to OIE 18/01/2011
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 26/03/2010
  • Manifestation of disease Clinical disease
  • Causal agent Highly pathogenic avian influenza virus
  • Serotype H5
  • Nature of diagnosis Clinical, Laboratory (basic), Laboratory (advanced), Necropsy
  • This event pertains to a defined zone within the country

• New outbreaks
  • Summary of outbreaks
    • Total outbreaks: 1
    • Location(s) - RAKHINE STATE (Bumay-Letthamar village, Sittwe , Sittwe )
      • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
        • Birds - 800 - 500 - 500 - 300 - 0

• Outbreak statistics
  • Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
    • Birds - 62.50% - 62.50% - 100.00% - 100.00%
    • * Removed from the susceptible population through death, destruction and/or slaughter

• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive

• Epidemiological comments
  • The layer chickens were 3 months old.
  • There were a total of 800 chickens.
  • Chicken deaths started from 6 January and a total of 500 chickens died.
  • HPAI virus was detected by PCR.
  • There are 8 farms in this village with a total of 5,000 chickens.
  • All are layer chickens of different ages.

• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Disinfection of infected premises/establishment(s)
    • Dipping / Spraying
    • No vaccination
    • No treatment of affected animals
  • Measures to be applied
    • No other measures

• Diagnostic test results
  • Laboratory name and type Central Veterinary Diagnostic Laboratory, Yangon (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - polymerase chain reaction (PCR) - 16/01/2011 - Positive
      • Birds - rapid tests - 16/01/2011 - Positive

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

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