2010-2011 Estimated Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination in the United States
CDC estimates that influenza vaccination during the 2010-2011 influenza season prevented 5.6 million illnesses, 2.8 million medical visits, 80,000 hospitalizations and 9,800 deaths associated with influenza (Table: Estimated Number of Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination, 2010-11 through 2017-18 Influenza Seasons).
Table 1: Estimated Number of Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination, by Age Group — United States, 2011-2012 influenza season
|
Averted Illnesses |
Averted Medical Visits |
Averted Hospitalizations |
Averted Deaths |
| Age group |
Estimate |
95% UI* |
Estimate |
95% UI* |
Estimate |
95% UI* |
Estimate |
95% UI* |
|
6 mo-4 yrs
|
1,171,190 |
(616,140, 3,563,804) |
784,697 |
(422,464, 2,401,599) |
8,165 |
(4,295, 24,845) |
84 |
(0, 356) |
|
5-17 yrs
|
1,471,962 |
(826,788, 3,154,525) |
765,420 |
(440,160, 1,620,605) |
4,036 |
(2,267, 8,649) |
50 |
(0, 270) |
|
18-49 yrs
|
1,156,365 |
(539,881, 3,261,973) |
427,855 |
(210,802, 1,194,833) |
6,491 |
(3,030, 18,309) |
818 |
(334, 2,652) |
|
50-6 yrs
|
1,281,371 |
(424,666, 5,637,772) |
550,990 |
(189,142, 2,361,005) |
13,589 |
(4,503, 59,787) |
1,571 |
(481, 7,599) |
|
65+ yrs
|
525,929 |
(0, 3,633,883) |
294,520 |
(0, 1,928,177) |
47,812 |
(0, 330,353) |
7,259 |
(0, 53,487) |
|
All ages
|
5,606,818 |
(3,148,773, 13,989,330) |
2,823,483 |
(1,671,853, 6,929,750) |
80,092 |
(18,973, 383,735) |
9,782 |
(1,277, 58,278) |
*Uncertainty Interval
Table 2: Estimated Fraction of Influenza Hospitalizations Averted by Vaccination by age group — United States, 2010-2011 influenza season
| Age group |
Estimate |
95% UI* |
|
6 mo-4 yrs
|
43 |
(35, 51) |
|
5-17 yrs
|
27 |
(20, 34) |
|
18-49 yrs
|
15 |
(9, 19) |
|
50-6 yrs
|
23 |
(11, 31) |
|
65+ yrs
|
24 |
(0, 44) |
*Uncertainty Interval
