Rabbit haemorrhagic disease,
Mexico
Information received on 06/10/2020 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
Summary
Report type Follow-up report No. 18
Date of start of the event 03/04/2020
Date of confirmation of the event 08/04/2020
Report date 05/10/2020
Date submitted to OIE 06/10/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 1991
Manifestation of disease Clinical disease
Causal agent Rabbit haemorrhagic disease virus
Serotype RHDV2
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (09/04/2020)
Follow-up report No. 1 (22/04/2020)
Follow-up report No. 2 (04/05/2020)
Follow-up report No. 3 (15/05/2020)
Follow-up report No. 4 (25/05/2020)
Follow-up report No. 5 (29/05/2020)
Follow-up report No. 6 (09/06/2020)
Follow-up report No. 7 (17/06/2020)
Follow-up report No. 8 (24/06/2020)
Follow-up report No. 9 (01/07/2020)
Follow-up report No. 10 (14/07/2020)
Follow-up report No. 11 (22/07/2020)
Follow-up report No. 12 (29/07/2020)
Follow-up report No. 13 (04/08/2020)
Follow-up report No. 14 (18/08/2020)
Follow-up report No. 15 (26/08/2020)
Follow-up report No. 16 (18/09/2020)
Follow-up report No. 17 (25/09/2020)
Follow-up report No. 18 (05/10/2020)
Follow-up report No. 19 (14/10/2020)
Follow-up report No. 20 (28/10/2020)
Follow-up report No. 21 (17/11/2020)
New outbreaks (13)
Outbreak 1 Durango, Durango
Date of start of the outbreak 08/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 1 1 1 0 0
Affected population Backyard with a pet rabbit, detected by the notification due to the presence of clinical signs (severe respiratory signs, excitation, incoordination), as well as the sudden death of the animal. Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 2 Morelos, Zacatecas
Date of start of the outbreak 09/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 26 12 10 16 0
Affected population Backyard with 26 rabbits for breeding, detected by the notification due to the presence of clinical signs compatible with the disease (excitation, incoordination, sudden death). Samples were collected, which were positive for rabbit haemorrhagic disease by rt-pcr and IC technique.
Outbreak 3 Villa González Ortega, Zacatecas
Date of start of the outbreak 11/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 10 9 9 1 0
Affected population Backyard with ten rabbits for meat production, detected by the notification due to the presence of clinical signs (severe respiratory signs, bloody and frothy nasal discharge, as well as terminal screeching). Samples were collected and tested positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 4 Luis Moya, Zacatecas
Date of start of the outbreak 18/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 17 6 6 11 0
Affected population Backyard property with 17 pet rabbits, detected by the notification due to the sudden death of the animals. Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 5 Cosio, Aguascalientes
Date of start of the outbreak 18/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 25 25 24 1 0
Affected population Backyard with 25 rabbits for meat production, detected by the notification due to the presence of signs compatible with the disease (bloody and foamy nasal discharge), as well as the sudden death of the animals. Samples were collected and found to be positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 6 Loreto, Zacatecas
Date of start of the outbreak 19/09/2020
Outbreak status Resolved (23/09/2020)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Black-tailed Jackrabbit:Lepus californicus(Leporidae) 1 1 1 0 0
Affected population It is a hare found dead and reported to the authorities. Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique. 
Outbreak 7 Rincón de Romos, Aguascalientes
Date of start of the outbreak 20/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 42 5 5 37 0
Affected population Backyard with 42 rabbits for meat production, detected by the notification due to the presence of signs compatible with the disease (excitation, incoordination), as well as sudden animal death. Samples were collected and found to be positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 8 Rincón de Romos, Aguascalientes
Date of start of the outbreak 20/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 43 10 10 33 0
Affected population Backyard with 43 rabbits for meat production, detected by surveillance. Samples were collected and tested positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 9 Durango, Durango
Date of start of the outbreak 22/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 40 10 10 30 0
Affected population Backyard property with 40 pet rabbits, detected by the notification due to the presence of signs compatible with the disease (haemorrhagic rhinitis, bloody and foamy nasal discharge, terminal scream). Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 10 Venado, San Luis Potosi
Date of start of the outbreak 22/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 20 18 18 2 0
Affected population Backyard property with 20 rabbits for meat production, detected by the notification due to the presence of signs compatible with the disease (excitation and incoordination, terminal scream), as well as sudden death of the animals. Samples were collected and found to be positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 11 San Francisco de los Romo, Aguascalientes
Date of start of the outbreak 23/09/2020
Outbreak status Resolved (25/09/2020)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Black-tailed Jackrabbit:Lepus californicus(Leporidae) 1 1 1 0 0
Affected population This is a hare found dead. Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 12 Durango, Durango
Date of start of the outbreak 23/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 15 4 4 11 0
Affected population Backyard with 15 rabbits for meat production, detected by the notification due to the presence of signs compatible with the disease (excitation and incoordination, terminal scream), as well as sudden death of the animals. Samples were collected and found to be positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Outbreak 13 Luis Moya, Zacatecas
Date of start of the outbreak 24/09/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 27 15 15 12 0
Affected population Backyard property with 27 rabbits for breeding, detected by the notification due to the sudden death of the animals. Samples were collected, which were positive for rabbit haemorrhagic disease by HA and rt-pcr technique.
Summary of outbreaks Total outbreaks: 13
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Rabbits 266 115 112 154 0
Black-tailed Jackrabbit:Lepus californicus(Leporidae) 2 2 2 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Rabbits 43.23% 42.11% 97.39% 100.00%
Black-tailed Jackrabbit:Lepus californicus(Leporidae) 100.00% 100.00% 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
  • Unknown or inconclusive
Epidemiological comments Following epidemiological tracing and promotion of notification, three affected backyards were identified in Durango, four in Zacatecas, three in Aguascalientes and one in San Luis Potosí. In addition, two dead hares were found in Zacatecas and Aguascalientes. The premises have been depopulated and are being cleaned and disinfected. Active surveillance continues in these States for possible 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 animal found dead in the area, as well as avoid movements of rabbits.
Control measures
Measures applied
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • Surveillance outside containment and/or protection zone
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations