2012-2013 Estimated Influenza Illnesses, Medical Visits, Hospitalizations, and Deaths Averted by Vaccination in the United States

Past Seasons

CDC estimates that influenza vaccination during the 2012-2013 influenza season prevented 5.5 million illnesses, 2.7 million medical visits, 60,000 hospitalizations and 3,700 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, 2012-2013 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	846,840	(495,470, 2,021,954)	567,383	(338,055, 1,333,743)	5,904	(3,454, 14,096)	69	(14, 241)
5-17 yrs	1,565,044	(1,047,638, 2,375,756)	813,823	(565,085, 1,209,220)	4,291	(2,873, 6,514)	203	(89, 453)
18-49 yrs	1,304,456	(696,107, 3,818,704)	482,649	(264,255, 1,381,664)	7,322	(3,907, 21,434)	237	(104, 803)
50-64 yrs	1,514,121	(779,639, 4,310,262)	651,072	(345,403, 1,832,669)	16,057	(8,268, 45,709)	799	(369, 2,623)
65+ yrs	285,765	(0, 2,672,392)	160,028	(0, 1,414,495)	25,979	(0, 242,945)	2,388	(0, 23,550)
All ages	5,516,225	(3,722,987, 11,420,558)	2,674,954	(1,869,589, 5,317,044)	59,552	(23,128, 291,701)	3,696	(850, 25,433)

*Uncertainty Interval

*Uncertainty Interval

Page last reviewed: December 10, 2019