OIE: A/H1N1 influenza, Argentina

Information received on 25/06/2009 from Dr Jorge Nestor Amaya, Presidente, Presidencia, SENASA, BUENOS AIRES, Argentina

Summary

Report type Immediate notification
Start date 15/06/2009
Date of first confirmation of the event 24/06/2009
Report date 25/06/2009
Date submitted to OIE 25/06/2009
Reason for notification Emerging disease
Morbidity 30 %
Mortality 0 %
Zoonotic impact Se está investigando ya que la hipótesis indicaría que el origen fueron contactos humanos enfermos.
Causal agent A/H1N1 influenza virus
Serotype Other
This event pertains to the whole country

New outbreaks

Summary of outbreaks Total outbreaks: 1
Outbreak Location and Affected population
  • BUENOS AIRES (San Andrés de Giles, San Andrés de Giles) : A commercial pig farm with biosecurity measures in place and its own restocking system; a 4.5-hectares area. No other animal species in the farm. The distribution of the animals is as follows: 516 sows, 7 hogs, 2,900 castrated pigs, 58 young sows and 2,105 sucking pigs.
Total animals affected
Species Susceptible Cases Deaths Destroyed Slaughtered
Swine 5586 1676 0 0 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 30.00% 0.00% 0.00% 0.00%

* Removed from the susceptible population through death, destruction and/or slaughter

Epidemiology

Source of the outbreak(s) or origin of infection
  • Under investigation
Epidemiological comments Between 7 and 9 June 2009, two workers of the farm showed flu signs, but they did not consult a doctor nor made diagnostic tests.
The farm has its own restocking system. The last entry of animals occurred in July 2008. The farm applies biosecurity measures and the animals only leave the farm for slaughter.
Since 24 June 2009, no clinical signs have been observed in the animals of that establishment.

Control measures

Measures applied
  • Quarantine
  • Disinfection of infected premises/establishment(s)
  • No vaccination
  • No treatment of affected animals
Measures to be applied
  • No other measures

Diagnostic test results

Laboratory name and type Malbrán Institute (National laboratory)
Tests and results
Species Test Test date Result
Swine reverse transcription - polymerase chain reaction (RT-PCR) 24/06/2009 Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.