SARS-CoV-2/COVID-19,
United States of America
Information received on 09/07/2020 from Dr Mark Davidson, Associate Administrator, USDA-APHIS, United States Department of Agriculture, Washington, United States of America
Summary
Report type Follow-up report No. 9
Date of start of the event 27/03/2020
Date of confirmation of the event 04/04/2020
Report date 09/07/2020
Date submitted to OIE 09/07/2020
Reason for notification Emerging disease
Morbidity 2 (scale 0 to 5)
Mortality 0 (scale 0 to 5)
Zoonotic impact Zoonotic potential currently unknown
Causal agent SARS-CoV-2/COVID-19
Related reports Immediate notification (06/04/2020)
Follow-up report No. 1 (17/04/2020)
Follow-up report No. 2 (22/04/2020)
Follow-up report No. 3 (29/04/2020)
Follow-up report No. 4 (02/06/2020)
Follow-up report No. 5 (03/06/2020)
Follow-up report No. 6 (10/06/2020)
Follow-up report No. 7 (25/06/2020)
Follow-up report No. 8 (02/07/2020)
Follow-up report No. 9 (09/07/2020)
Follow-up report No. 10 (17/07/2020)
Follow-up report No. 11 (23/07/2020)
Follow-up report No. 12 (30/07/2020)
Follow-up report No. 13 (05/08/2020)
Follow-up report No. 14 (13/08/2020)
New outbreaks (2)
Outbreak 1 Orange County, Orange, California
Date of start of the outbreak 25/06/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cats 2 1 1 0 0
Affected population Pet domestic cat (Felis catus) in a residential household
Outbreak 2 Tarrant County, Tarrant, Texas
Date of start of the outbreak 26/06/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Dogs 1 1 0 0 0
Affected population Pet domestic dog (Canis lupus familiaris) in a residential household
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Cats 2 1 1 0 0
Dogs 1 1 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Cats 50.00% 50.00% 100.00% 50.00%
Dogs 100.00% 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
  • Suspected human transmission
Epidemiological comments 9 Jul 2020 Update— California (CA): A domestic cat from a known positive COVID-19 household was confirmed positive for SARS-CoV-2 at the National Veterinary Services Laboratories based upon molecular testing (sequencing). The cat first showed clinical signs of difficulty breathing and was later hospitalized for tachypnea, hypothermia and heart murmur. Further diagnostics revealed abnormalities consistent with hypertrophic cardiomyopathy. The cat's condition worsened and it died, likely due to its cardiac condition. The cat tested positive for both mycoplasma felis and SARS-CoV-2 at the initial testing laboratory. A second pet cat in the household has shown no clinical signs of disease. Texas (TX): A domestic dog from a known positive COVID-19 household was confirmed positive for SARS-CoV-2 at the National Veterinary Services Laboratories based upon molecular testing (PCR and sequencing). The dog has shown no clinical signs of illness and was initially tested because it was leaving a COVID-19 positive household and entering a veterinary facility for boarding.
Control measures
Measures applied
  • Quarantine
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
National Veterinary Services Laboratories (National laboratory) Cats gene sequencing 02/07/2020 Positive
National Veterinary Services Laboratories (National laboratory) Dogs gene sequencing 06/07/2020 Positive
National Veterinary Services Laboratories (National laboratory) Dogs real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 06/07/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations