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Rabbit haemorrhagic disease,
Mexico
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Information received on 29/07/2020 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 |
Mazapil, Zacatecas |
| Date of start of the outbreak |
18/07/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Backyard |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Rabbits |
30 |
28 |
28 |
2 |
0 |
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| Affected population |
A backyard with 30 rabbits for meat production, detected by notification due to the presence of clinical signs suggesting the disease (severe respiratory symptoms, bloody and foamy nasal discharge, final squeaking). Samples were collected that tested positive to rabbit haemorrhagic disease with haemagglutination and RT-PCR diagnostic tests. |
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| Outbreak 2 |
Comondú, Baja California Sur |
| Date of start of the outbreak |
21/07/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Farm |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Rabbits |
100 |
49 |
49 |
51 |
0 |
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| Affected population |
A high tech unit with 100 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 |
Ensenada, Baja California |
| Date of start of the outbreak |
21/07/2020 |
| Outbreak status |
Continuing (or date resolved not provided) |
| Epidemiological unit |
Backyard |
| Affected animals |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Rabbits |
24 |
22 |
22 |
2 |
0 |
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| Affected population |
A backyard with 24 rabbits for meat production, detected by notification due to the presence of clinical signs suggesting the disease (final squeaking and sudden death). Samples were collected that tested positive to rabbit haemorrhagic disease with RT-PCR diagnostic test. |
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| Summary of outbreaks |
Total outbreaks: 3 |
| Total animals affected |
| Species |
Susceptible |
Cases |
Deaths |
Killed and disposed of |
Slaughtered |
| Rabbits |
154 |
99 |
99 |
55 |
0 |
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| Outbreak statistics |
| Species |
Apparent morbidity rate |
Apparent mortality rate |
Apparent case fatality rate |
Proportion susceptible animals lost* |
| Rabbits |
64.29% |
64.29% |
100.00% |
100.00% |
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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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| Epidemiological comments |
Following epidemiological tracing and increased notification, affected backyards were identified: one in Baja California and another in Zacatecas. In addition one affected high tech unit in Baja California Sur was reported. The backyards/production units 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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Surveillance within containment and/or protection zone
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Quarantine
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Official disposal of carcasses, by-products and waste
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Stamping out
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Disinfection
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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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