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Japan - 4 new outbreaks of SARS-CoV-2 in dogs in Tokyo (OIE, September 25, 2020)

Pathfinder

Pathfinder

Editor, Senior Moderator
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[TD="align: left"]SARS-COV-2,
Japan[/TD]
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[TD]Information received on 25/09/2020 from Dr Norio Kumagai, Director, Chief Veterinary Officer, Animal Health Division, Food Safety and Consumer Affairs Bureau, Ministry of Agriculture, Forestry and Fisheries, Tokyo, Japan[/TD]
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[TD]Summary

[TD="width: 10%"]Report type[/TD]
[TD="width: 30%"]Immediate notification[/TD]

[TD="width: 10%"]Date of start of the event[/TD]
[TD="width: 30%"]26/07/2020[/TD]

[TD="width: 10%"]Date of confirmation of the event[/TD]
[TD="width: 30%"]03/08/2020[/TD]

[TD="width: 10%"]Report date[/TD]
[TD="width: 30%"]25/09/2020[/TD]

[TD="width: 10%"]Date submitted to OIE[/TD]
[TD="width: 30%"]25/09/2020[/TD]

[TD="width: 10%"]Reason for notification[/TD]
[TD="width: 30%"]Emerging disease[/TD]

[TD="width: 10%"]Morbidity[/TD]
[TD="width: 30%"]1 (scale 0 to 5)[/TD]

[TD="width: 10%"]Mortality[/TD]
[TD="width: 30%"]0 (scale 0 to 5)[/TD]

[TD="width: 10%"]Zoonotic impact[/TD]
[TD="width: 30%"]Zoonotic potential currently unknown[/TD]

[TD="width: 10%"]Causal agent[/TD]
[TD="width: 30%"]SARS-CoV-2[/TD]
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[TD]New outbreaks (4)[/TD]
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Tokyo, Tokyo
Date of start of the outbreak26/07/2020
Outbreak statusResolved (30/07/2020)
Epidemiological unitNot applicable
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Dogs11000
Affected populationone domestic dog

[TD="align: left"]Outbreak 1[/TD]
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Tokyo, Tokyo
Date of start of the outbreak31/07/2020
Outbreak statusResolved (10/08/2020)
Epidemiological unitNot applicable
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Dogs21000
Affected populationone domestic dog

[TD="align: left"]Outbreak 2[/TD]
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Tokyo, Tokyo
Date of start of the outbreak07/08/2020
Outbreak statusResolved (21/08/2020)
Epidemiological unitNot applicable
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Dogs11000
Affected populationone domestic dog

[TD="align: left"]Outbreak 3[/TD]
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Tokyo, Tokyo
Date of start of the outbreak12/08/2020
Outbreak statusResolved (24/08/2020)
Epidemiological unitNot applicable
Affected animals
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Dogs11000
Affected populationone domestic dog

[TD="align: left"]Outbreak 4[/TD]
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Total outbreaks: 4
Total animals affected
SpeciesSusceptibleCasesDeathsKilled and disposed ofSlaughtered
Dogs54000
Outbreak statistics
SpeciesApparent morbidity rateApparent mortality rateApparent case fatality rateProportion susceptible animals lost*
Dogs80.00%0.00%0.00%0.00%

[TD="align: left"]Summary of outbreaks[/TD]

[TD="colspan: 2"]*Removed from the susceptible population through death, destruction and/or slaughter[/TD]
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[TD]Epidemiology
Source of the outbreak(s) or origin of infection
  • Suspected human to animal transmission
Epidemiological commentsOutbreak 1, 2 and 3 Since April 2020, a private company in Japan has been running a voluntary service to take care of companion animals owned by COVID-19 patients while the owners are in hospital or isolation. From late July to early August, the dogs were entrusted to the private company by their owners who were to be hospitalized due to COVID-19. Nasal and throat swabs were taken from the dogs at the quarantine facility owned by the private company. Samples were tested positive for SARS-CoV2 by the tests conducted by the National Laboratory in Tokyo. The dogs were returned to the owners after negative results have been confirmed. The dogs were placed under quarantine until negative results were confirmed. Note: Outbreak 1 and 2 have already been reported to the OIE by the delegate letter dated on 7th August, 2020. Outbreak 4 The dog was temporarily transferred to the public facility on 12th August after its owner was hospitalized due to COVID-19. Nasal and oral swabs were taken from the dog at the public facility. Samples were tested positive for SARS-CoV2 by the tests conducted by the National Laboratory in Tokyo. The dog was placed under quarantine for sufficient time. None of these 4 dogs have exhibited any clinical signs. Note that the location of the outbreaks used in this report is that of MAFF to protect any data relating to human cases.
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[TD]Control measures
Measures applied
  • Traceability
  • Quarantine
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
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[TD]Diagnostic test results
Laboratory name and typeSpeciesTestTest dateResult
the National Institute for Infectious Diseases (National laboratory)Dogsgene sequencing03/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsgene sequencing07/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsgene sequencing18/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)30/07/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)02/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsreal-time reverse transcriptase/polymerase chain reaction (RRT-PCR)10/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsreverse transcription - polymerase chain reaction (RT-PCR)14/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsvirus neutralisation test (VNT)25/08/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsvirus neutralisation test (VNT)16/09/2020Positive
the National Institute for Infectious Diseases (National laboratory)Dogsvirus neutralisation test (VNT)16/09/2020Positive
The Institute of Medical Science, The University of Tokyo (Private Laboratory)Dogsenzyme-linked immunosorbent assay (ELISA)31/08/2020Positive
The Institute of Medical Science, The University of Tokyo (Private Laboratory)Dogsvirus neutralisation test (VNT)31/08/2020Positive
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[TD]Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
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https://www.oie.int/wahis_2/public/...?page_refer=MapFullEventReport&reportid=35864
 
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