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There's something weird going on in that graph.

If you click through each age group individually, they all show the unvaccinated rate per 100k as much higher than vaccinated. Yet, the "All ages" group has the opposite.

That doesn't seem like it should be possible. The age ranges supposedly cover every age (0 to 80+ seems like all ages to me), and within each sub-group, unvaccinated case rates are larger... it doesn't seem possible for the all-ages graph to show the opposite.

Do you have any insight into that discrepancy?



Possibly not what's happening, but this is a well-known occurrence in comparing subsets to an overall set. It's called Simpson's Paradox:

https://en.wikipedia.org/wiki/Simpson%27s_paradox


Yes, they stopped tracking by age, I believe October 24th. So when you switch the graph to view by age group you're seeing the graph upto October 24th. It shows you data before Omicron. There's a disclaimer on top of the page explaining this.




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