2010-2011 Estimated Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination in the United States

Past Seasons

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
Age group	Estimate	95% UI*	Estimate	95% UI*	Estimate	95% UI*	Estimate	95% UI*
	Averted Illnesses		Averted Medical Visits		Averted Hospitalizations		Averted Deaths
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

*Uncertainty Interval

Page last reviewed: December 18, 2019