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Italy, Influenza - Virological Surveillance Update - Week 09/2011 (Ministry of Health, March 9 2011, extract, edited): 65.8% of isolates were H1N1 (2009)

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  • Italy, Influenza - Virological Surveillance Update - Week 09/2011 (Ministry of Health, March 9 2011, extract, edited): 65.8% of isolates were H1N1 (2009)

    Italy, Influenza - Virological Surveillance Update - Week 09/2011 (Ministry of Health, March 9 2011, extract, edited): 65.8% of isolates were H1N1 (2009)

    [Source: Ministry of Health, full PDF document (in Italian), (LINK). Translated by the Mod.(IOH), edited.]

    Italy, Influenza - Virological Surveillance Update - Week 06/2011

    9 March 2011


    Clinical samples collection activity continues through Influnet laboratories network.

    During current week (09/2011), four hundred twenty-six (426) clinical samples have been collected by network's laboratories.

    Among these, eighty-five (85 [19,9%]) were positive for influenza virus.

    Fifty-six (56 [65,8%]) were type A H1N1 2009, twenty (20 [23,5%]) were type B, five (5 [5,8%]) were A(H3N2) and four (4) were not yet subtyped.


    Table 1 - Virological Surveillance of Influenza - Cumulative Number of Isolates per Week and Type/Subtype (since the start of the season, Week 46/2010

    [Type-Subtype / Week (number of isolates): 46 / 47 / 48 / 49 / 50 / 51 / 52 / 01 / 02 / 03 / 04 / 05 / 06 / 7 / 8 / 9, Total]
    • INFLUENZA A - 0 - 4 - 3 - 1 - 8 - 20 - 41 - 79 - 182 - 302 - 320 - 327 - 298 - 223 - 114 - 65 - 1.987
      • A (non yet subtyped) - ... - 1 - ... - ... - ... - 2 - 2 - 4 - 22 - 31 - 33 - 31 - 25 - 35 - 11 - 4 - 201
      • A/H3N2 - ... - ... - ... - 1 - 4 - ... - 3 - ... - 8 - 8 - 2 - 7 - 4 - 13 - 4 - 5 - 59
      • A/H1N1 2009 - ... - 3 - 3 - ... - 4 - 18 - 36 - 75 - 152 - 263 - 285 - 289 - 269 - 175 - 99 - 56 - 1.727
    • INFLUENZA B - 0 - 2 - 2 - 1 - 6 - 13 - 17 - 28 - 37 - 64 - 120 - 132 - 129 - 109 - 48 - 20 - 728
    • TOTALE POSITIVE SAMPLES - 0 - 6 - 5 - 2 - 14 - 33 - 58 - 107 - 219 - 366 - 440 - 459 - 427 - 332 - 162 - 85 - 2.715

    (...)
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