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Rabbit haemorrhagic disease, Mexico
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Information received on 26/08/2020 from Dr. Gay Gutiérrez Juan, Director General de Salud Animal, Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA),
Secretaría de Agricultura y Desarrollo Rural (SADER), Ciudad de Mexico, Mexico
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Summary
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Outbreak 1 |
Guadalcazar, San Luis Potosi |
Date of start of the outbreak |
12/08/2020 |
Outbreak status |
Resolved (17/08/2020) |
Epidemiological unit |
Other |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Black-tailed Jackrabbit:Lepus californicus(Leporidae) |
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1 |
1 |
0 |
0 |
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Affected population |
A wild rabbit detected by notification due to the presence of clinical signs suggesting the disease (severe respiratory symptoms, excitation, incoordination and final squeaking). Samples were collected that tested positive to rabbit haemorrhagic disease with RT-PCR diagnostic test. |
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Outbreak 2 |
Tijuana, Baja California |
Date of start of the outbreak |
13/08/2020 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Backyard |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Rabbits |
210 |
51 |
51 |
159 |
0 |
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Affected population |
A backyard with 210 rabbits for breeding , detected by notification due to the presence of clinical signs suggesting the disease (bloody and foamy nasal discharge as well as sudden death). Samples were collected that tested positive to rabbit haemorrhagic disease with RT-PCR diagnostic test. |
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Outbreak 3 |
Lerdo, Durango |
Date of start of the outbreak |
15/08/2020 |
Outbreak status |
Continuing (or date resolved not provided) |
Epidemiological unit |
Backyard |
Affected animals |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Rabbits |
40 |
30 |
30 |
10 |
0 |
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Affected population |
A backyard with 40 rabbits, these are pet animals, detected by notification due to the sudden death of the animals. Samples were collected that tested positive to rabbit haemorrhagic disease with haemagglutination and RT-PCR diagnostic tests. |
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Summary of outbreaks |
Total outbreaks: 3 |
Total animals affected |
Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
Black-tailed Jackrabbit:Lepus californicus(Leporidae) |
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1 |
1 |
0 |
0 |
Rabbits |
250 |
81 |
81 |
169 |
0 |
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Outbreak statistics |
Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
Black-tailed Jackrabbit:Lepus californicus(Leporidae) |
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100.00% |
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Rabbits |
32.40% |
32.40% |
100.00% |
100.00% |
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*Removed from the susceptible population through death, destruction and/or slaughter |
**Not calculated because of missing information |
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Epidemiology
Source of the outbreak(s) or origin of infection |
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Epidemiological comments |
Following epidemiological tracing and increased notification, one affected backyard was identified in Durango as well as another backyard in Baja California. In addition one wild rabbit was identified with the disease clinical signs. The backyards have been depopulated and cleaning and desinfection are on-going. Active surveillance continues in these States for new cases. It was recommended that producers in the area immediately inform official veterinary personnel of the presence of typical signs of rabbit haemorraghic disease or of any wild animals found dead in the area, as well as avoid movements of rabbits. |
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Control measures
Measures applied |
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Disinfection
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Stamping out
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Official disposal of carcasses, by-products and waste
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Quarantine
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Surveillance within containment and/or protection zone
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Vaccination prohibited
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No treatment of affected animals
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Measures to be applied |
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Surveillance outside containment and/or protection zone
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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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