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Volume 19, Number 3—March 2013

Research

Effects of Vaccine Program against Pandemic Influenza A(H1N1) Virus, United States, 2009–2010

Rebekah H. Borse1, Sundar S. Shrestha, Anthony E. Fiore, Charisma Y. Atkins, James A. Singleton, Carolyn Furlow, and Martin I. MeltzerComments to Author 
Author affiliations: Author affiliation: Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Table 4

Estimated number of hospitalizations prevented by vaccination against influenza A(H1N1)pdm09 virus*

Subgroup No. hospitalizations of persons in groups with no vaccination program (range) No. hospitalizations prevented by a vaccination program (range) No. doses administered to avoid 1 hospitalization (range)
6 mo–9 y 54,745 (38,826–80,563) 614 (328–1,090) 43,333 (24,421–81,227)
10–24 y, (10–17 all, 18–24 NP) 63,117 (44,761–92,999) 1,838 (1,179–3,032) 8,654 (5,246–13,489)
Pregnant, 18–64 y 6,481 (4,590–9,582) 446 (298–722) 5,396 (3,336–8,072)
25–64 y, HR, NP 38,060 (26,990–56,074) 1,029 (653–1,707) 8,972 (5,409–14,132)
25–64 y, HCW, non-HR, NP 16,082 (11,394–23,734) 721 (469–1,181) 8,679 (5,294–13,324)
25–64, contact with <6 mo, non-HCW, non-HR, NP 7,020 (4,981–10,338) 163 (104–270) 12,478 (7,528–19,516)
25–64 y, noncontact with <6 mo, non-HCW, non-HR, NP 67,249 (47,743–98,922) 902 (558–1,516) 17,005 (10,124–27,524)
>65 y
27,789 (19,723–40,901)
527 (334–876)
20,444 (12,305–32,278)
Total 280,544 (199,009–413,112) 6,240 (3,923–10,393) 14,193 (8,522–22,575)

*All values are estimates. NP, not pregnant; HR, high risk; HCW, health care worker; contact, household contacts and caregivers of children <6 mo of age.

Main Article

1Current affiliation: Merck & Co., Inc., Lansdale, Pennsylvania, USA.

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