Low pathogenic avian influenza (poultry),
Chile
Information received on 18/01/2017 from Dr Jose Ignacio Gómez Meza, Jefe de la División de Protección Pecuaria, Servicio Agrícola y Ganadero (SAG), Ministerio de Agricultura, Santiago, Chile
Summary
Report type Follow-up report No. 1
Date of start of the event 26/12/2016
Date of confirmation of the event 06/01/2017
Report date 18/01/2017
Date submitted to OIE 18/01/2017
Date event resolved 08/03/2017
Reason for notification First occurrence of a listed disease in the country
Causal agent Low pathogenic avian influenza virus
Serotype H7N6
Nature of diagnosis Clinical, Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (06/01/2017)
Follow-up report No. 1 (18/01/2017)
Follow-up report No. 2 (31/01/2017)
Follow-up report No. 3 (07/02/2017)
Follow-up report No. 4 (15/02/2017)
Follow-up report No. 5 (10/03/2017)
Follow-up report No. 6 (17/03/2017)
Follow-up report No. 7 (05/05/2017)
Follow-up report No. 8 (12/06/2017)
New outbreaks (1)
Outbreak 1 Quillota - Comuna Nogales, Valparaiso
Date of start of the outbreak 18/01/2017
Outbreak status Resolved (08/03/2017)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 35472 103 103 35369 0
Affected population The outbreak is contained to the farm El Melón owned by the same company as the farm of the first outbreak. It consists of five sheds of turkeys for fattening. From the background analysis, a direct relationship between this outbreak and the initial outbreak is identified, so the latter is considered as an extension of the first.
Summary of outbreaks Total outbreaks: 1
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Birds 35472 103 103 35369 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Birds 0.29% 0.29% 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 The entire susceptible population was destroyed; in addition to extending the control measures to the whole territory, active and passive surveillance including surveys, sampling and epidemiological tracking has been carried out in the outbreak area and the area around the outbreak.
Control measures
Measures applied
  • Disinfection
  • Traceability
  • Quarantine
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Control of wildlife reservoirs
  • Zoning
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Official Laboratory Lo Aguirre (National laboratory) Birds neuraminidase inhibition assay 12/01/2017 Positive
Official Laboratory Lo Aguirre (National laboratory) Birds reverse transcription - polymerase chain reaction (RT-PCR) 18/01/2017 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations