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#Update: Increase in #Human #Infections with #Avian #Influenza #H7N9 Viruses During the 5th #Epidemic — #China, Oct. ‘16–Aug. 7 ‘17 (@CDCgov, edited)

Title : #Update: Increase in #Human #Infections with #Avian #Influenza #H7N9 Viruses During the 5th #Epidemic — #China, Oct. ‘16–Aug. 7 ‘17....

4 May 2017

Highly pathogenic #avian #influenza #H7N3, #Mexico [a #poultry #outbreak] (#OIE, May 4 ‘17)


Title: Highly pathogenic #avian #influenza #H7N3, #Mexico [a #poultry #outbreak].

Subject: Avian Influenza, H7N3 subtype, poultry epizootics in Mexico.

Source: OIE, full page: (LINK).

Code: [     ]

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Highly pathogenic avian influenza H7N3, Mexico

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Information received on 04/05/2017 from MVZ Joaquín Braulio Delgadillo Álvarez, Director General de Salud Animal, Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA) Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación, Ministerio de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación, México, Mexico

  • Summary
    • Report type Immediate notification
    • Date of start of the event 18/04/2017
    • Date of confirmation of the event 28/04/2017
    • Report date 04/05/2017
    • Date submitted to OIE 04/05/2017
    • Reason for notification Recurrence of a listed disease
    • Date of previous occurrence 11/05/2016
    • Manifestation of disease Sub-clinical infection
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H7N3
    • Nature of diagnosis Laboratory (advanced)
    • This event pertains to a defined zone within the country
  • New outbreaks
    • Summary of outbreaks
      • Total outbreaks: 1
        • Outbreak Location  - JALISCO ( Tepatitlán de Morelos, Tepatitlán de Morelos )
      • Total animals affected:  Species -  Susceptible -  Cases   Deaths -  Destroyed -  Slaughtered
        • Birds  -  151132  -  10    0  -  0  -  0
      • Outbreak statistics:  Species -  Apparent morbidity rate -  Apparent mortality rate -  Apparent case fatality rate -  Proportion susceptible animals lost*
        • Birds -  0.01% -  0.00% -  0.00% -  0.00%
          • * 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
    • Following active surveillance on-going in Altos de Jalisco area, H7N3 avian influenza virus was isolated in a commercial layer farm.
    • The flock had been vaccinated against the disease 18 weeks beforehand; birds did not show any clinical signs.
    • A 3km outbreak area and a 10km area around the outbreak were established, and three other farms from the same company, that are empty, were identified in the area around the outbreak.
    • The farm is under quarantine and the birds were sent to an authorized slaughterhouse near the site.
    • Epidemiological investigation is on-going.
  • Control measures
    • Measures applied
      • Movement control inside the country
      • Quarantine
      • Zoning
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • Disinfection / Disinfestation
      • Stamping out
      • Official destruction of animal products
  • Diagnostic test results
    • Laboratory name and type -  Level 3 Biosecurity Laboratory, SENASICA ( National laboratory )
      • Tests and results:  Species -  Test -  Test date -  Result
        • Birds -  gene sequencing -  28/04/2017 -  Positive
        • Birds -  intravenous pathogenicity index (IVPI) test  -  26/04/2017 -  Positive
        • Birds -  real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) -  20/04/2017 -  Positive
        • Birds -  virus isolation -  21/04/2017 -  Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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Keywords: OIE; Updates; Avian Influenza; H7N3 ; Poultry; Mexico.

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