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. 2020 Jan 6;71(8):e368–e376. doi: 10.1093/cid/ciz1244

Table 2.

Estimates of All Influenza-Associated Illnesses, Medical Visits, Hospitalizations, and Deaths Prevented by Influenza Vaccination—United States, 2018–2019 Influenza Season

Illnesses Medical Visits Hospitalizations Deaths
Age Group Number Prevented 95% UIa Number Prevented 95% UI Number Prevented 95% UI Number Prevented 95% UI
6 months–4 years 1 335 840 (736 978–2 851 485) 895 012 (492 938–1 926 307) 10 569 (5933–22 379) 111 (25–381)
5–17 years 1 021 821 (446 661–1 870 063) 531 347 (230 928–980 184) 3269 (1478–5709) 33 (4–108)
18–49 years 984 698 (612 071–1 610 237) 364 338 (225 540–600 040) 6239 (3919–9884) 229 (114–588)
50–64 years 785 710 (241 045–2 158 024) 337 855 (102 597–926 454) 9250 (2970–23 951) 536 (143–2000)
≥65 years 300 879 (3249–1 316 421) 168 492 (1844–737 768) 28 695 (1533–121 752) 2625 (122–12 163)
All ages 4 428 947 (3 429 414–7 070 624) 2 297 045 (1 755 797–3 768 642) 58 022 (29 598–156 185) 3533 (1016–13 393)

Abbreviation: UI, uncertainty interval.

a95% UI from 5000 Monte Carlo simulations.