Newcastle disease,
Mexico
Information received on 01/03/2019 from MVZ Joaquín Braulio Delgadillo Álvarez, Director General de Salud Animal, Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA) Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación, Ministerio de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación, México, Mexico
Summary
Report type Follow-up report No. 2
Date of start of the event 01/01/2019
Date of confirmation of the event 26/01/2019
Report date 01/03/2019
Date submitted to OIE 01/03/2019
Reason for notification Recurrence of a listed disease
Date of previous occurrence 03/2016
Manifestation of disease Clinical disease
Causal agent Newcastle disease virus, pathogenic strain
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (14/02/2019)
Follow-up report No. 1 (22/02/2019)
Follow-up report No. 2 (01/03/2019)
Follow-up report No. 3 (08/03/2019)
Follow-up report No. 4 (15/03/2019)
Follow-up report No. 5 (22/03/2019)
Follow-up report No. 6 (29/03/2019)
Follow-up report No. 7 (05/04/2019)
Follow-up report No. 8 (12/04/2019)
Follow-up report No. 9 (17/04/2019)
Follow-up report No. 10 (28/05/2019)
New outbreaks (5)
Outbreak 1 Las Rosas, Chiapas
Date of start of the outbreak 15/02/2019
Outbreak status Resolved (22/02/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 34 27 27 7 0
Affected population Backyard of 34 native birds with high mortality and clinical signs suggestive of the disease (conjunctivitis, edema of the eyelids, crest and barbels, emerald green watery diarrhea and sudden death).
Outbreak 2 Las Rosas, Chiapas
Date of start of the outbreak 15/02/2019
Outbreak status Resolved (22/02/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 17 11 10 7 0
Affected population Backyard of 17 native birds with high mortality and clinical signs suggestive of the disease.
Outbreak 3 Las Rosas, Chiapas
Date of start of the outbreak 15/02/2019
Outbreak status Resolved (21/02/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 17 17 11 6 0
Affected population Backyard of 17 native birds with high mortality and clinical signs suggestive of the disease.
Outbreak 4 Aguascalientes, Aguascalientes
Date of start of the outbreak 18/02/2019
Outbreak status Resolved (23/02/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 551 508 433 118 0
Affected population Backyard of 551 native birds with high mortality and clinical signs suggestive of the disease.
Outbreak 5 Tlaxco, Tlaxcala
Date of start of the outbreak 19/02/2019
Outbreak status Resolved (22/02/2019)
Epidemiological unit Backyard
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 100 70 60 40 0
Affected population Backyard of 100 fighting birds with high mortality and clinical signs suggestive of the disease.
Summary of outbreaks Total outbreaks: 5
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 719 633 541 178 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 88.04% 75.24% 85.47% 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 As part of the actions carried out around the outbreaks in the State of Chiapas, three holdings with mortality were identified. The samples taken were sent to the SENASICA molecular biology laboratory in Tabasco for diagnosis, and the results were positive; definitive quarantines were established and a ban on the in and out movements of birds was implemented. Destruction and sanitary elimination of birds and risk elements, as well as cleaning, washing and disinfection of facilities ended. During epidemiological surveillance at national level, two affected premises were detected, one with fighting birds in the State of Tlaxcala and the other with backyard birds in Aguascalientes. Samples taken from the fighting birds were sent to the SENASICA molecular biology laboratory in Puebla, and those from backyard birds in Aguascalientes to the national reference laboratory in Mexico City.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Disinfection
  • Vaccination permitted (if a vaccine exists)
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations