Rabbit haemorrhagic disease,
Mexico
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
Summary
Report type Follow-up report No. 15
Date of start of the event 03/04/2020
Date of confirmation of the event 08/04/2020
Report date 26/08/2020
Date submitted to OIE 26/08/2020
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)
Follow-up report No. 22 (09/12/2020)
Follow-up report No. 23 (15/01/2021)
Follow-up report No. 24 (20/01/2021)
New outbreaks (3)
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) 1 1 0 0
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.
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
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.
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
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.
Summary of outbreaks Total outbreaks: 3
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Black-tailed Jackrabbit:Lepus californicus(Leporidae) 1 1 0 0
Rabbits 250 81 81 169 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Black-tailed Jackrabbit:Lepus californicus(Leporidae) ** ** 100.00% **
Rabbits 32.40% 32.40% 100.00% 100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
**Not calculated because of missing information
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
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.
Control measures
Measures applied
  • Disinfection
  • Stamping out
  • Official disposal of carcasses, by-products and waste
  • Quarantine
  • Surveillance within containment and/or protection zone
  • 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