A/H1N1 influenza , Argentina

Information received on 09/10/2009 from Dr Jorge Nestor Amaya, Presidente, Presidencia, SENASA, BUENOS AIRES, Argentina

Summary

Report type Follow-up report No. 4 (Final report)
Start date 15/06/2009
Date of first confirmation of the event 24/06/2009
Report date 09/10/2009
Date submitted to OIE 09/10/2009
Date event resolved 05/10/2009
Reason for notification Emerging disease
Morbidity 15 %
Mortality 0 %
Zoonotic impact An investigation is on-going since it is suggested that the origin is the contact with sick humans.
Causal agent A/H1N1 influenza virus
Related reports
Outbreaks There are no new outbreaks in this report

Epidemiology

Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments Swab samples were taken from 52 piglets in the outbreak 1 at San Andrés de Giles (50 nasal and 2 bronchial) and from 60 piglets in the outbreak 2 at Cañuelas (nasal); they were 10-12 weeks old and were born after the detection of the last sick animal (sentinel animals). All samples were negative for the specific sequence of influenza A by real-time RRT-PCR.
Human cases of influenza A H1N1 were confirmed by laboratory tests in both holdings; they showed clinical signs prior to the detection of cases in pigs.

Control measures

Measures applied
  • Quarantine
  • Screening
  • Zoning
  • 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 Directorate of Laboratories and Technical Control (SENASA) (National laboratory)
Tests and results
Species Test Test date Result
Swine real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 03/09/2009 Negative
Swine real-time reverse transcriptase/polymerase chain reaction (RRT-PCR) 02/10/2009 Negative

Future Reporting

The event is resolved. No more reports will be submitted.