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  Title : #Avian #Influenza #H7N9 in #China: Preventing the Next #SARS. Subject : Avian Influenza, H7N9 subtype (Asian Lineage), poultry e...

19 Jul 2017

#Bovine spongiform #encephalopathy [#BSE], #USA (#OIE, Jul 19 ‘17)


Title: #Bovine spongiform #encephalopathy [#BSE], #USA.

Subject: BSE, atypical, cattle epizootics in the US.

Source: OIE, full page: (LINK).

Code: [     ]

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Bovine spongiform encephalopathy, United States of America

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Information received on 18/07/2017 from Dr John Clifford, Official Delegate, Chief Trade Advisor, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America

  • Summary
    • Report type  Immediate notification (Final report)
    • Date of start of the event  05/07/2017
    • Date of confirmation of the event  16/07/2017
    • Report date  18/07/2017
    • Date submitted to OIE  19/07/2017
    • Date event resolved  19/07/2017
    • Reason for notification  Recurrence of a listed disease
    • Date of previous occurrence  30/06/2012
    • Manifestation of disease  Clinical disease
    • Causal agent  Prion (atypical low-type BSE)
    • 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  -   ALABAMA ( Perry County, Perry )
      • Total animals affected:  Species -  Susceptible -  Cases -  Deaths -  Killed and disposed of -  Slaughtered
        • Cattle  -  1  -  1  -  1  -  0  -  0
      • Outbreak statistics:  Species -  Apparent morbidity rate -  Apparent mortality rate -  Apparent case fatality rate -  Proportion susceptible animals lost*
        • Cattle -  100.00% -  100.00% -  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
      • random mutation
  • Epidemiological comments
    • As part of the United States’ targeted surveillance program for bovine spongiform encephalopathy (BSE), a case of Atypical BSE was identified in an 11 year old beef type cow.
    • This Atypical BSE was classified as L-type.
    • Native cases of BSE in the United States have all been atypical BSE cases -- this is only the fourth case of atypical BSE identified in over 20 years of surveillance. The last case was in 2012.
    • The identified animal did not enter any food supply channels and at no time presented a risk to human health.
    • Specified risk material removal and the ruminant-to-ruminant feed bans continue to be effectively applied.
  • Control measures
    • Measures applied
      • Screening
      • Traceability
      • Official disposal of carcasses, by-products and waste
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • No other measures
  • Diagnostic test results
    • Laboratory name and type -  National Veterinary Services Laboratories (NVSL) ( National laboratory )
      • Tests and results:  Species -  Test -  Test date -  Result
        • Cattle -  enzyme-linked immunosorbent assay (ELISA) -  15/07/2017 -  Positive
        • Cattle -  western blot -  16/07/2017 -  Positive
  • Future Reporting
    • The event is resolved. No more reports will be submitted.


(...)

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Keywords: OIE; Updates; BSE; Cattle; USA; Alabama.

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