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SARS-CoV-2/COVID-19, United States of America
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Information received on 02/09/2020 from Dr Mark Davidson, Associate Administrator, USDA-APHIS,
United States
Department of Agriculture, Washington, United States of America
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Summary
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Outbreak 1 |
Rapides Parish, Rapides, Louisiana |
Date of start of the outbreak |
17/08/2020 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Other |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Dogs |
1 |
0 |
0 |
0 |
0 |
Cats |
4 |
1 |
0 |
0 |
0 |
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Affected population |
Pet domestic cat (Felis catus) in a residential household |
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Summary of outbreaks |
Total outbreaks: 1 |
Total animals affected |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Dogs |
1 |
0 |
0 |
0 |
0 |
Cats |
4 |
1 |
0 |
0 |
0 |
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Outbreak statistics |
Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
Dogs |
0.00% |
0.00% |
- |
0.00% |
Cats |
25.00% |
0.00% |
0.00% |
0.00% |
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*Removed from the susceptible population through death, destruction and/or slaughter |
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Epidemiology
Source of the outbreak(s) or origin of infection |
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Suspected human transmission
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Epidemiological comments |
3 Sep 2020 Update--
Louisiana (LA): 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 (PCR and sequencing). The affected cat, which initially showed mild respiratory signs, had reportedly improved by the following day.
Texas (TX): Four dogs and two cats from Brazos County who are housemates to the three confirmed positive cat cases have tested positive for SARS-CoV-2 virus neutralizing antibodies.
Virus neutralizing antibodies in the absence of other positive test results have been detected in the following animals (listed by state):
1. 1 cat (AZ)**
2. 3 cats and 5 dogs from seven households (TX)**
As of 3 Sep 2020, total number of animals with detections of virus neutralizing antibody only:31
**Samples collected as part of planned and targeted active surveillance of specific animals, with known or suspected exposures to a person with COVID-19 or other exposure to SARS-CoV-2, to better understand risk factors for SARS-CoV-2 transmission.
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Control measures
Measures applied |
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Quarantine
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Disinfection
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Vaccination permitted (if a vaccine exists)
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No treatment of affected animals
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Measures to be applied |
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Diagnostic test results
Laboratory name and type |
Species |
Test |
Test date |
Result |
National Veterinary Services Laboratories (National laboratory) |
Cats |
gene sequencing |
27/08/2020 |
Positive |
National Veterinary Services Laboratories (National laboratory) |
Cats |
real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) |
27/08/2020 |
Positive |
National Veterinary Services Laboratories (National laboratory) |
Cats |
virus neutralisation test (VNT) |
25/08/2020 |
Positive |
National Veterinary Services Laboratories (National laboratory) |
Cats |
virus neutralisation test (VNT) |
02/09/2020 |
Positive |
National Veterinary Services Laboratories (National laboratory) |
Dogs |
virus neutralisation test (VNT) |
02/09/2020 |
Positive |
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Future Reporting
The event is continuing. Weekly follow-up reports will be submitted. |
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Map of outbreak locations
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