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Pearson correlations between weekly number of online (social) media messages and weekly number of reported measles cases for the observation period (31 weeks between April 15 and November 11, 2013).
| Data source | Tweets | Other social media | Online newspapers | |||
|
|
r | P | r | P | r | P |
| Tweets | — | — | — | — | — | — |
| Other social media | .96 | <.001 | — | — | — | — |
| Online newspapers | .96 | <.001 | .90 | <.001 | — | — |
| Reported measles cases | .56 | .003 | .40 | .048 | .44 | .045 |
