Burden Estimates for the 2016-2017 Influenza Season
The overall burden of influenza for the 2016-2017 season was an estimated 29 million influenza illnesses, 14 million influenza-associated medical visits, 500,000 influenza-related hospitalizations, and 38,000 influenza-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 | 2,381,218 | (1,390,236, 12,601,859) | 1,595,416 | (924,357, 8,525,518) | 16,601 | (9,692, 87,855) | 126 | (0, 300) |
| 5-17 yrs | 6,452,110 | (4,260,828, 13,196,404) | 3,355,097 | (2,191,820, 6,869,053) | 17,691 | (11,683, 36,183) | 125 | (0, 418) |
| 18-49 yrs | 9,292,804 | (6,652,894, 15,421,148) | 3,438,338 | (2,370,723, 5,813,710) | 52,161 | (37,343, 86,559) | 1,365 | (858, 2,020) |
| 50-64 yrs | 7,448,184 | (5,301,910, 13,098,914) | 3,202,719 | (2,224,600, 5,618,648) | 78,986 | (56,225, 138,910) | 3,780 | (2,880, 4,913) |
| 65+ yrs | 3,646,206 | (2,367,196, 7,315,271) | 2,041,876 | (1,297,567, 4,155,698) | 331,473 | (215,200, 665,025) | 32,833 | (23,243, 55,297) |
| All ages | 29,220,523 | (24,730,258, 44,863,689) | 13,633,446 | (11,367,031, 22,513,028) | 496,912 | (383,061, 857,458) | 38,230 | (28,582, 60,686) |
| 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 | 11,949.70 | (6,976.6, 63,240.0) | 8,006.30 | (4,638.7, 42,783.7) | 83.3 | (48.6, 440.9) | 0.6 | (0.0, 1.5) |
| 5-17 yrs | 12,011.70 | (7,932.3, 24,567.3) | 6,246.10 | (4,080.4, 12,787.9) | 32.9 | (21.7, 67.4) | 0.2 | (0.0, 0.8) |
| 18-49 yrs | 6,786.10 | (4,858.3, 11,261.3) | 2,510.90 | (1,731.2, 4,245.5) | 38.1 | (27.3, 63.2) | 1 | (0.6, 1.5) |
| 50-64 yrs | 11,766.10 | (8,375.6, 20,692.7) | 5,059.40 | (3,514.3, 8,875.9) | 124.8 | (88.8, 219.4) | 6 | (4.5, 7.8) |
| 65+ yrs | 7,404.30 | (4,807.1, 14,855.1) | 4,146.40 | (2,635.0, 8,439.0) | 673.1 | (437.0, 1,350.5) | 66.7 | (47.2, 112.3) |
Page last reviewed: November 22, 2019
