A/H1N1 influenza , Argentina (WAHID Interface - OIE World Animal Health Information Database, July 9, 2009, edited)

A/H1N1 influenza , Argentina

Information received on 09/07/2009 from Dr Jorge Nestor Amaya, Presidente, Presidencia, SENASA, BUENOS AIRES, Argentina

-- Summary
Report type Follow-up report No. 2
Start date 15/06/2009
Date of first confirmation of the event 24/06/2009
Report date 08/07/2009
Date submitted to OIE 09/07/2009
Reason for notification Emerging disease
Morbidity 15 %
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
Related reports
* Immediate notification (25/06/2009)
* Follow-up report No. 1 (01/07/2009)
* Follow-up report No. 2 (08/07/2009)

-- New outbreaks

- Outbreak 1 (Foco 2) - Cañuelas, Cañuelas, BUENOS AIRES
Date of start of the outbreak 29/06/2009
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
- Swine - 6104 - 1632 - 0 - 0 - 0
Affected population An industrial-type holding with full production cycle applying biosecurity measures. Affected categories: suckling pigs and castrated pigs having showed mild clinical signs (cough).

-- Summary of outbreaks
Total outbreaks: 1
Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
- Swine - 26.74% - 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
A 3-km-radius zone around the new outbreak has been established and inspection and tracking activities are on-going on the premises with pigs. Also, an investigation on possible epidemiological links with other farms is underway. No new cases have been observed in the first outbreak since 24 June.

-- 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) - 08/07/2009 - Positive

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