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. Meltzer
Table 5
Estimated number of deaths prevented by vaccination against influenza A(H1N1)pdm09 virus*
| Subgroup | No. deaths without a vaccination program (range) | No. deaths prevented due to a vaccination program (range) | No. doses administered to avoid 1 death (range) |
|---|---|---|---|
| 6 mo–9 y | 759 (538–1,117) | 9 (5–15) | 3,087,138 (1,745,154–5,761,939) |
| 10–24 y, (10–17 all, 18–24 NP) | 1,028 (729–1,514) | 30 (20–50) | 525,012 (319,229–814,797) |
| Pregnant 18–64 y | 533 (378–789) | 37 (25–60) | 64,787 (40,177–96,492) |
| 25–64 y, HR, NP | 3,077 (2,182–4,533) | 84 (54–139) | 109,638 (66,300–171,951) |
| 25–64 y, HCW, non-HR, NP | 1,175 (833–1,735) | 53 (35–87) | 117,312 (71,786–179,325) |
| 25–64, contact with <6 mo, non-HCW, non-HR, NP | 766 (544–1,128) | 18 (12–30) | 112,945 (68,351–175,889) |
| 25–64 y, noncontact with <6 mo, non-HCW, non-HR, NP | 3,792 (2,692–5,578) | 52 (32–86) | 297,838 (177,870–479,999) |
| >65 y |
1,653 (1,173–2,433) |
32 (20–53) |
339,494 (204,961–533,711) |
| Total | 12,783 (9,069–18,826) | 315 (201–520) | 281,305 (170,343–439,832) |
* All values are estimates. Vaccinations beginning at week 40 with a distribution of the vaccines as outlined in Table 2. NP, not pregnant; HR, high risk; HCW, health care worker; contact, household contacts and caregivers of children <6 mo of age.
1Current affiliation: Merck & Co., Inc., Lansdale, Pennsylvania, USA.
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