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Observed and expected number of rotavirus and norovirus positive samples between September (week 36) 2013 and August (week 35) 2014 in Japan.
| Observed (O) | Expected (E) | Ratio (O/E) | 95% CI* | |
|---|---|---|---|---|
| Rotavirus | 367 | 854.5 | 0.429 | 0.386, 0.478 |
| Norovirus | 3006 | 3239.7 | 0.927 | 0.890, 0.967 |
* confidence interval
