|
Rabbit haemorrhagic disease,
United States of America
|
|
|
|
Information received on 21/09/2018 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 |
| Date of start of the event |
17/08/2018 |
| Date of confirmation of the event |
19/09/2018 |
| Report date |
21/09/2018 |
| Date submitted to OIE |
21/09/2018 |
| Date event resolved |
05/10/2018 |
| Reason for notification |
New strain of a listed disease in the country |
| Causal agent |
Rabbit haemorrhagic disease virus |
| Serotype |
RHDV2 |
| Nature of diagnosis |
Laboratory (advanced) |
| This event pertains to |
a defined zone within the country |
| Related reports |
Immediate notification (21/09/2018)
Follow-up report No. 1 (27/11/2018)
|
|
|
|
| Outbreak 1 |
Medina County, Medina, Ohio |
| Date of start of the outbreak |
17/08/2018 |
| Outbreak status |
Resolved (05/10/2018) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Hares / rabbits |
5 |
4 |
4 |
1 |
0 |
|
| Affected population |
Non-commercial pet rabbits. |
|
| Summary of outbreaks |
Total outbreaks: 1 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Hares / rabbits |
5 |
4 |
4 |
1 |
0 |
|
| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Hares / rabbits |
80.00% |
80.00% |
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 |
|
| Epidemiological comments |
The rabbits, which were pets, were housed in horse stalls and ran free in those stalls.
The USDA, Animal Plant Health Inspection Services (APHIS), and the Ohio Department of Agriculture are conducting a comprehensive epidemiological investigation of this event. This is the first detection of rabbit hemorrhagic disease virus 2 in the United States.
|
|
|
|
|
Control measures
| Measures applied |
-
Disinfection
-
Vaccination prohibited
-
No treatment of affected animals
|
| Measures to be applied |
|
|
|
Diagnostic test results
| Laboratory name and type |
Species |
Test |
Test date |
Result |
| National Veterinary Services Laboratories - Foreign Animal Disease Diagnostic Laboratory (National laboratory) |
Hares / rabbits |
antigen (Ag) detection ELISA |
19/09/2018 |
Positive |
| National Veterinary Services Laboratories - Foreign Animal Disease Diagnostic Laboratory (National laboratory) |
Hares / rabbits |
antigen (Ag) detection ELISA |
20/09/2018 |
Positive |
| National Veterinary Services Laboratories - Foreign Animal Disease Diagnostic Laboratory (National laboratory) |
Hares / rabbits |
real-time PCR |
19/09/2018 |
Positive |
|
|
Future Reporting
| The event is continuing. Weekly follow-up reports will be submitted. |
|
|
Map of outbreak locations
|
|