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Influenza (also includes Pandemic (H1N1) 2009)

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Update on Influenza in the Americas - Vol. 1, No. 20—19 November 2003 Update on Influenza in the Americas - Vol. 1, No. 20—19 November 2003

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Date added: 11/19/2003
Date modified: 09/23/2010
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WHO (World Health Organization) and NSSREV (National Surveillance System of Respiratory and Enteric Viruses) collaborating laboratories tested 1,056 samples for influenza, of which 203 (19.2%) were positive: 170 for unsubtyped Influenza A, 30 for Influenza A Subtype H3N2, 3 for Influenza B.

Update on Influenza in the Americas - Vol. 1, No. 19—12 November 2003 Update on Influenza in the Americas - Vol. 1, No. 19—12 November 2003

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Date added: 11/12/2003
Date modified: 09/23/2010
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During Epidemiological Week (EW) 44 (from 25 October to 1 November 2003), the overall proportion of patient visits to sentinel providers for flu-like symptoms or influenza-like illness (ILI) was 2.2%, less than the national baseline of 2.5%.

Update on Influenza in the Americas - Vol. 1, No. 18—6 November 2003 Update on Influenza in the Americas - Vol. 1, No. 18—6 November 2003

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Date added: 11/06/2003
Date modified: 09/23/2010
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During Epidemiological Week (EW) 43 (19–25 October 2003), 1.8% of all patient visits to sentinel providers was for influenza-like illness (ILI), a figure below the national baseline of 2.5%.

Update on Influenza in the Americas - Vol. 1, No. 17—30 October 2003 Update on Influenza in the Americas - Vol. 1, No. 17—30 October 2003

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Date added: 10/30/2003
Date modified: 09/23/2010
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During Epidemiological Week (EW) 42 (from 12–18 October 2003), the overall proportion of visits to sentinel providers by patients suffering from influenza-like illness (ILI) was 1.9%, a rate less than the national baseline of 2.5%.

Update on Influenza in Brazil - Vol. 1, No. 21—26 November 2003 Update on Influenza in Brazil - Vol. 1, No. 21—26 November 2003

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Date added: 11/26/2003
Date modified: 09/23/2010
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Of all people receiving medical attention at sentinel centers up to Epidemiological Week (EW) 44 (to 1 November 2003), 18% of them showed signs of flu syndrome (n = 902,930).

Update on Avian Influenza: Situation as of 5 February 2004 Update on Avian Influenza: Situation as of 5 February 2004

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Date added: 02/05/2004
Date modified: 09/23/2010
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Update on Avian Influenza - Vol. 2, No. 9—4 March 2004 Update on Avian Influenza - Vol. 2, No. 9—4 March 2004

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Date added: 03/04/2004
Date modified: 09/23/2010
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Since our last update of 26 February 2004, 1 new human case of avian influenza has been reported, bringing the total to 33 cases and 22 deaths.

Update on Avian Influenza - Vol. 2, No. 8—26 February 2004 Update on Avian Influenza - Vol. 2, No. 8—26 February 2004

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Date added: 02/08/2004
Date modified: 09/23/2010
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Since our last update of 19 February 2004, 1 new human case of avian influenza has been reported, bring the total to 32 cases and 22 deaths. To date, 2 Asian countries have reported cases in humans...

Update on Avian Influenza - Vol. 2, No. 7—19 February 2004 Update on Avian Influenza - Vol. 2, No. 7—19 February 2004

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Date added: 02/19/2004
Date modified: 09/23/2010
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Since our last update on 12 February 2004, 6 new human cases of avian flu H5N1 and ensuing 3 deaths have been reported, which brings the total to 31 human cases and 22 deaths.

Update on Avian Influenza - Vol. 2, No. 6—12 February 2004 Update on Avian Influenza - Vol. 2, No. 6—12 February 2004

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Date added: 02/12/2004
Date modified: 09/23/2010
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Since our last update on 5 February 2004, 4 new human cases of avian influenza have been confirmed in Viet Nam—out of which 3 have died—and 1 more in Thailand who is still alive.

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