Burden Estimates for the 2015-2016 Influenza Season
The overall burden of influenza for the 2015-2016 season was an estimated 24 million influenza illnesses, 11 million influenza-associated medical visits, 280,000 influenza-related hospitalizations, and 23,000 flu-associated deaths (Table: Estimated Influenza Disease Burden, by Season — United States, 2010-11 through 2017-18 Influenza Seasons).
| Symptomatic Illnesses | Medical Visits | Hospitalizations | Deaths | |||||
|---|---|---|---|---|---|---|---|---|
| Age group | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I |
| 0-4 yrs | 2,195,276 | (1,517,785, 4,264,279) | 1,470,835 | (1,000,088, 2,852,211) | 15,304 | (10,581, 29,729) | 180 | (0, 436) |
| 5-17 yrs | 4,140,269 | (2,866,365, 6,881,275) | 2,152,940 | (1,473,591, 3,637,791) | 11,352 | (7,859, 18,868) | 88 | (0, 241) |
| 18-49 yrs | 9,121,242 | (6,524,729, 14,616,919) | 3,374,860 | (2,338,468, 5,480,793) | 51,198 | (36,623, 82,045) | 1,703 | (1,099, 2,523) |
| 50-64 yrs | 6,640,358 | (4,539,659, 11,816,145) | 2,855,354 | (1,903,319, 5,151,090) | 70,419 | (48,142, 125,307) | 3,277 | (2,352, 4,659) |
| 65+ yrs | 1,407,174 | (807,910, 3,568,190) | 788,018 | (446,501, 2,016,037) | 127,925 | (73,446, 324,381) | 17,458 | (12,204, 29,356) |
| All ages | 23,504,319 | (19,928,951, 32,524,195) | 10,642,006 | (8,932,013, 14,736,247) | 276,198 | (214,721, 482,650) | 22,705 | (17,373, 34,671) |
| Illness rate | Medical visit rate | Hospitalization rate | Mortality rate | |||||
|---|---|---|---|---|---|---|---|---|
| Age group | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I |
| 0-4 yrs | 11,027.50 | (7,624.3, 21,420.7) | 7,388.40 | (5,023.7, 14,327.5) | 76.9 | (53.2, 149.3) | 0.9 | (0.0, 2.2) |
| 5-17 yrs | 7,704.60 | (5,334.0, 12,805.3) | 4,006.40 | (2,742.2, 6,769.5) | 21.1 | (14.6, 35.1) | 0.2 | (0.0, 0.4) |
| 18-49 yrs | 6,667.50 | (4,769.5, 10,684.8) | 2,467.00 | (1,709.4, 4,006.4) | 37.4 | (26.8, 60.0) | 1.2 | (0.8, 1.8) |
| 50-64 yrs | 10,504.90 | (7,181.6, 18,692.8) | 4,517.10 | (3,011.0, 8,148.9) | 111.4 | (76.2, 198.2) | 5.2 | (3.7, 7.4) |
| 65+ yrs | 2,946.30 | (1,691.6, 7,471.0) | 1,649.90 | (934.9, 4,221.1) | 267.8 | (153.8, 679.2) | 36.6 | (25.6, 61.5) |
Page last reviewed: November 8, 2019
