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Outbreaks reported in The Netherlands, 2009 (National Institute of Public Health, The Netherlands, unpublished data), numbers of cases per outbreak [ 23] and case-fatality ratios (CFRs) in the elderly in outbreaks [ 10]
| Setting | Outbreaks | Number of cases per outbreak | Mean CFR per outbreak | (95% CI) | Mean life-expectancy | (95% CI) |
|---|---|---|---|---|---|---|
| Nursing homes | 75 | 43 | 0·14 | (0·11–0·17) | 30 months | (24–40) |
| Hospitals | 57 | 25 | 0·14 | (0·11–0·17) |
CI, Confidence interval.
