Table 1: Estimated Influenza Disease Burden, by Season United States, 2010-11 through 2019-20 Influenza Seasons
  Symptomatic Illnesses Medical Visits Hospitalizations Deaths
Season Estimate 95% U I Estimate 95% U I Estimate 95% U I Estimate 95% U I
2010-2011 21,000,000 (20,000,000 25,000,000) 10,000,000 (9,300,000 12,000,000) 290,000 (270,000 350,000) 37,000 (32,000 51,000)
2011-2012 9,300,000 (8,700,000 12,000,000) 4,300,000 (4,000,000 5,600,000) 140,000 (130,000 190,000) 12,000 (11,000 23,000)
2012-2013 34,000,000 (32,000,000 38,000,000) 16,000,000 (15,000,000 18,000,000) 570,000 (530,000 680,000) 43,000 (37,000 57,000)
2013-2014 30,000,000 (28,000,000 33,000,000) 13,000,000 (12,000,000 15,000,000) 350,000 (320,000 390,000) 38,000 (33,000 50,000)
2014-2015 30,000,000 (29,000,000 33,000,000) 14,000,000 (13,000,000 16,000,000) 590,000 (540,000 680,000) 51,000 (44,000 64,000)
2015-2016 24,000,000 (20,000,000 33,000,000) 11,000,000 (9,000,000 15,000,000) 280,000 (220,000 480,000) 23,000 (17,000 35,000)
2016-2017 29,000,000 (25,000,000 45,000,000) 14,000,000 (11,000,000 23,000,000) 500,000 (380,000 860,000) 38,000 (29,000 61,000)
2017-2018* 45,000,000 (39,000,000 58,000,000) 21,000,000 (18,000,000 27,000,000) 810,000 (620,000 1,400,000) 61,000 (46,000 95,000)
2018-2019* 36,000,000 (31,000,000 45,000,000) 17,000,000 (14,000,000 21,000,000) 490,000 (390,000 770,000) 34,000 (26,000 53,000)
2019-2020* 38,000,000 (34,000,000 47,000,000) 18,000,000 (15,000,000 22,000,000) 400,000 (350,000 500,000) 22,000 (18,000 29,000)
Average: 29,630,000 13,830,000 442,000 35,900
Source: https://www.cdc.gov/flu/about/burden/index.html
35,900 / 29,630,000 = 0.00121
* 2017-2018, 2018-2019, and 2019-2020 are preliminary

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