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Number Needed to Vaccinate to Prevent 1 Influenza A- and B-Associated Hospitalization—United States, 2017–2018 Influenza Season
| Age Group | Number Needed to Vaccinate | 95% Credible Intervala |
|---|---|---|
| 6 mo–4 y | 821 | (606, 1190) |
| 5–17 y | 7811 | (4925, 17 494) |
| 18–49 y | 5758 | (4105, 9849) |
| 50–64 y | 1311 | (808, 3502) |
| 65+ y | 462 | (162, >999 999) |
| All ages | 1223 | (578, 3438) |
aThe 95% credible interval is from 5000 Monte Carlo simulations.
