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What am I seeing in that graph that makes me say this?

COVID wastewater data is •wildly• noisy, which makes it hard to read. It’s full of huge week-to-week fluctuations that look utterly apocalyptic, and appear to mean…nothing.

I really, really doubt, for example, that COVID cases in the entire state of MN magically spiked •and then receded• by a factor of ~5x over a period of ~2 weeks last May. Look at the yellow line. Whatever that’s showing, I doubt it’s disease trajectory.

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